Document:

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                                                                   EXHIBIT 10.12

                            FIFTH AMENDMENT TO LEASE

I.   PARTIES AND DATE.

     This Fifth Amendment to Lease (the "Amendment") dated May 18, 2006, is by
and between THE IRVINE COMPANY LLC, a Delaware limited liability company,
formerly The Irvine Company, a Delaware corporation ("Landlord"), and ALSIUS
CORPORATION, a California corporation ("Tenant").

II.  RECITALS.

     On March 16, 1999, Landlord and Tenant entered into a lease for space in a
building located at 15770 Laguna Canyon Road, Suite 150, Irvine, California
("Premises"), which lease was amended by a First Amendment to Lease dated
October 24, 2001, by a Second Amendment to Lease dared July 16, 2003, by a Third
Amendment to Lease dated July 21, 2004, and by a Fourth Amendment to Lease dated
September 20, 2005. The foregoing lease, as so amended, is hereinafter referred
to as the "Lease".

     Landlord and Tenant each desire to modify the Lease to extend the Lease
Term, to adjust the Basic Rent, and to make such other modifications as are set
forth in "III. MODIFICATIONS" next below.

III. MODIFICATIONS.

     A. Basic Lease Provisions. The Basic Lease Provisions are hereby amended as
follows:

          1.   Item 5 is hereby deleted in its entirety and substituted therefor
          shall be the following:

               "5. Lease Term: The Term of this Lease shall expire at midnight
               on December 31, 2008"

          2.   Item 6 is hereby amended by adding the following:

               "Commencing January 1,2007, the Basic Rent shall be Twenty Five
               Thousand Two Hundred Fifty-Four Dollars ($25,254.00) per month,
               based on $.94 per rentable square foot.

               Commencing January 1, 2008, the Basic Rent shall be Twenty Six
               Thousand Three Hundred Twenty-Nine Dollars ($26,329.00) per
               month, based on $.98 per rentable square foot."

     B. Landlord's Responsibilities. The provisions of Subsection 2.4(iii) of
the Lease shall remain in full force and effect during the Term of the Lease as
extended by the provisions of this Amendment.

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     C. Right to Extend the Lease. The provisions of Section 3.3 of the Lease
entitled "Right to Extend this Lease" shall remain in full force and effect,
with the "expiration date" as provided in said Section 3.3 being the expiration
date of the Term as extended by the provisions of this Amendment.

     D. Security Deposit

               (i)  Section 4.3 of the Lease is hereby amended to provide that,
               upon a of "Default" by Tenant (as defined in Section 14.1 of the
               Lease), Landlord may, in its sole and absolute discretion
               additionally retain, use or apply the whole or any part of the
               Security Deposit to pay amounts estimated by Landlord as the
               amount due Landlord for prospective rent and for damages pursuant
               to Section 14.2(a)(i) of the Lease and/or California Civil Code
               Section 1951.2.

               (ii) Section 4.3 of the Lease is further amended to add the
               following provisions to the end of said Section:

                    "Provided that: (a) no Default by Tenant has occurred at any
                    time during the Term of this Lease, (b) Tenant has not at
                    any tithe been more than five (5) days late with respect to
                    any payments of Basic Rent due under this Lease more than
                    once during the prior twelve (12) month period, and (c)
                    Tenant shall demonstrate by the delivery to Landlord of its
                    financial statements that Tenant has cash on hand in the
                    amount of at least Fifteen Million Dollars ($15,000,000.00),
                    then, upon written request of Tenant, Landlord shall return
                    to Tenant a portion of the Security Deposit in the amount of
                    Thirty Eight Thousand Four Hundred Ninety-Seven Dollars
                    ($38,497.00) in the form of credit(s) against the Basic Rent
                    next coming due under the Lease."

     E. Late Payments. The reference to "Two Hundred Fifty Dollars ($250.00)" in
Section 14.3(a) of the Lease is hereby amended to "One Hundred Dollars
($100.00)."

     F. Waiver of Jury Trial. Section 14.7 of the Lease is hereby deleted in its
entirety and substituted therefor shall be the following:

          SECTION 14.7. WAIVER OF JURY TRIAL/JUDICIAL REFERENCE.

          (a) LANDLORD AND TENANT EACH ACKNOWLEDGES THAT IT IS AWARE OF AND HAS
     HAD THE ADVICE OF COUNSEL OF ITS CHOICE WITH RESPECT TO ITS RIGHTS TO TRIAL
     BY JURY, AND, TO THE EXTENT ENFORCEABLE UNDER CALIFORNIA LAW, EACH PARTY
     DOES HEREBY EXPRESSLY AND KNOWINGLY WAIVE AND RELEASE ALL SUCH RIGHTS TO
     TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM BROUGHT BY EITHER
     PARTY HERETO AGAINST THE OTHER (AND/OR AGAINST ITS OFFICERS, DIRECTORS,
     EMPLOYEES, AGENTS, OR SUBSIDIARY OR AFFILIATED ENTITIES) ON ANY MATTERS
     WHATSOEVER ARISING OUT OF OR IN ANY WAY CONNECTED WITH THIS LEASE, TENANT'S
     USE OR OCCUPANCY OF THE PREMISES, AND/OR

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     ANY CLAIM OF INJURY OR DAMAGE. FURTHERMORE, THIS WAIVER AND RELEASE OF ALL
     RIGHTS TO A JURY TRIAL IS DEEMED TO BE INDEPENDENT OF EACH AND EVERY OTHER
     PROVISION, COVENANT, AND/OR CONDITION SET FORTH IN THIS LEASE.

          (b) IN THE EVENT THAT THE JURY WAIVER PROVISIONS OF SECTION 14.7(a)
     ARE NOT ENFORCEABLE UNDER CALIFORNIA LAW, THEN THE PROVISIONS OF THIS
     SECTION 14.7(b) SHALL APPLY. IT IS TILE DESIRE AND INTENTION OF THE PARTIES
     TO AGREE UPON A MECHANISM AND PROCEDURE UNDER WHICH CONTROVERSIES AND
     DISPUTES ARISING OUT OF THIS LEASE OR RELATED TO THE PREMISES WILL BE
     RESOLVED IN A PROMPT AND EXPEDITIOUS MANNER. ACCORDINGLY, EXCEPT WITH
     RESPECT TO ACTIONS FOR UNLAWFUL OR FORCIBLE DETAINER OR WITH RESPECT TO THE
     PREJUDGMENT REMEDY OF ATTACHMENT, ANY ACTION, PROCEEDING OR COUNTERCLAIM
     BROUGHT BY EITHER PARTY HERETO AGAINST THE OTHER (AND/OR AGAINST ITS
     OFFICERS, DIRECTORS, EMPLOYEES, AGENTS OR SUBSIDIARY OR AFFILIATED
     ENTITIES) ON ANY MATTERS WHATSOEVER ARISING OUT OF OR IN ANY WAY CONNECTED
     WITH THIS LEASE, TENANT'S USE OR OCCUPANCY OF TEE PREMISES AND/OR ANY CLAIM
     OF INJURY OR DAMAGE, SHALL BE HEARD AND RESOLVED BY A REFEREE UNDER TEE
     PROVISIONS OF THE CALIFORNIA CODE OF CIVIL PROCEDURE, SECTIONS 638-645.1,
     INCLUSIVE (AS SAME MAY BE AMENDED, OR ANY SUCCESSOR STATUTE(S) THERETO)
     (THE "REFEREE SECTIONS"). ANY FEE TO INITIATE THE JUDICIAL REFERENCE
     PROCEEDINGS SHALL BE PAID BY THE PARTY INITIATING SUCH PROCEDURE; PROVIDED
     HOWEVER, THAT TEE COSTS AND FEES, INCLUDING ANY INITIATION FEE, OF SUCH
     PROCEEDING SHALL ULTIMATELY BE BORNE IN ACCORDANCE WITH SECTION 14.6 ABOVE.
     THE VENUE OF THE PROCEEDINGS SHALL BE IN THE COUNTY IN WHICH THE PREMISES
     ARE LOCATED. WITHIN TEN (10) DAYS OF RECEIPT BY ANY PARTY OF A WRITTEN
     REQUEST TO RESOLVE ANY DISPUTE OR CONTROVERSY PURSUANT TO THIS SECTION
     14.7(b), THE PARTIES SHALL AGREE UPON A SINGLE REFEREE WHO SHALL TRY ALL
     ISSUES, WHETHER OF FACT OR LAW, AND REPORT A FINDING AND JUDGMENT ON SUCH
     ISSUES AS REQUIRED BY THE REFEREE SECTIONS. IF THE PARTIES ARE UNABLE TO
     AGREE UPON A REFEREE WITHIN SUCH TEN (10) DAY PERIOD, THEN ANY PARTY MAY
     THEREAFTER FILE A LAWSUIT IN THE COUNTY IN WHICH TUE PREMISES ARE LOCATED
     FOR THE PURPOSE OF APPOINTMENT OF A REFEREE UNDER CALIFORNIA CODE OF CIVIL
     PROCEDURE SECTIONS 638 AND 640, AS SAME MAY BE AMENDED OF ANY SUCCESSOR
     STATUTE(S) THERETO. IF THE REFEREE IS APPOINTED BY THE COURT, THE REFEREE
     SHALL BE A NEUTRAL AND IMPARTIAL RETIRED JUDGE WITH SUBSTANTIAL EXPERIENCE
     IN THE RELEVANT MATTERS TO BE DETERMINED, FROM JAMS/ENDISPUTE, INC., THE
     AMERICAN ARBITRATION ASSOCIATION OR SIMILAR MEDIATION/ARBITRATION ENTITY.
     THE PROPOSED

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     REFEREE MAY BE CHALLENGED BY ANY PARTY FOR ANY OF THE GROUNDS LISTED IN
     SECTION 641 OF TEE CALIFORNIA CODE OF CIVIL PROCEDURE, AS SAME MAY BE
     AMENDED OR ANY SUCCESSOR STATUTE(S) THERETO. TILE REFEREE SHALL HAVE THE
     POWER TO DECIDE ALL ISSUES OF FACT AND LAW AND REPORT HIS OR HER DECISION
     ON SUCH ISSUES, AND TO ISSUE ALL RECOGNIZED REMEDIES AVAILABLE AT LAW ORIN
     EQUITY FOR ANY CAUSE OF ACTION THAT IS BEFORE TILE REFEREE, INCLUDING AN
     AWARD OF ATTORNEYS' FEES AND COSTS IN ACCORDANCE WITH CALIFORNIA LAW. THE
     REFEREE SHALL NOT, HOWEVER, HAVE THE POWER TO AWARD PUNITIVE DAMAGES, NOR
     ANY OTHER DAMAGES WHICH ARE NOT PERMITTED BY THE EXPRESS PROVISIONS OF THIS
     LEASE, AND THE PARTIES HEREBY WAIVE ANY RIGHT TO RECOVER ANY SUCH DAMAGES.
     THE PARTIES SHALL BE ENTITLED TO CONDUCT ALL DISCOVERY AS PROVIDED IN THE
     CALIFORNIA CODE OF CIVIL PROCEDURE, AND THE REFEREE SHALL OVERSEE DISCOVERY
     AND MAY ENFORCE ALL DISCOVERY ORDERS IN THE SAME MANNER AS ANY TRIAL COURT
     JUDGE, WITH RIGHTS TO REGULATE DISCOVERY AND TO ISSUE AND ENFORCE
     SUBPOENAS, PROTECTIVE ORDERS AND OTHER LIMITATIONS ON DISCOVERY AVAILABLE
     UNDER CALIFORNIA LAW. THE REFERENCE PROCEEDING SHALL BE CONDUCTED IN
     ACCORDANCE WITH CALIFORNIA LAW (INCLUDING THE RULES OF EVIDENCE), AND IN
     ALL REGARDS, THE REFEREE SHALL FOLLOW CALIFORNIA LAW APPLICABLE AT THE TIME
     OF THE REFERENCE PROCEEDING. IN ACCORDANCE WITH SECTION 644 OF THE
     CALIFORNIA CODE OF CIVIL PROCEDURE, TILE DECISION OF THE REFEREE UPON TEE
     WHOLE ISSUE MUST STAND AS THE DECISION OF THE COURT, AND UPON THE FILING OF
     THE STATEMENT OF DECISION WITH THE CLERK OF THE COURT, OR WITH THE JUDGE IF
     THERE IS NO CLERK, JUDGMENT MAY BE ENTERED THEREON IN TILE SAME MANNER AS
     IF THE ACTION HAD BEEN TRIED BY THE COURT. TILE PARTIES SHALL PROMPTLY AND
     DILIGENTLY COOPERATE WITH ONE ANOTHER AND THE REFEREE, AN]) SHALL PERFORM
     SUCH ACTS AS MAY BE NECESSARY TO OBTAIN A PROMPT AND EXPEDITIOUS RESOLUTION
     OF THE DISPUTE OR CONTROVERSY IN ACCORDANCE WITH THE TERMS OF THIS SECTION
     14.7(b). TO THE EXTENT THAT NO PENDING LAWSUIT HAS BEEN FILED TO OBTAIN THE
     APPOINTMENT OF A REFEREE, ANY PARTY, AFTER THE ISSUANCE OF TILE DECISION OF
     THE REFEREE, MAY APPLY TO THE COURT OF THE COUNTY IN WHICH THE PREMISES ARE
     LOCATED FOR CONFIRMATION BY THE COURT OF THE DECISION OF THE REFEREE IN TEE
     SAME MANNER AS A PETITION FOR CONFIRMATION OF AN ARBITRATION AWARD PURSUANT
     TO CODE OF CIVIL PROCEDURE SECTION 1285 ET SEQ. (AS SAME MAY BE AMENDED OR
     ANY SUCCESSOR STATUTE(S) THERETO).

     G. Prorations. The third sentence of Article XVI of the Lease is hereby
deleted in its entirety, and substituted therefor shall be the following:

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          "All payments requiring proration shall be prorated on the basis of
          the number of days in the pertinent calendar month or year, as
          applicable."

     H. Acceptance of Premises. Tenant acknowledges that the lease of the
Premises pursuant to this Amendment shall be on an "as-is" basis without further
obligation on Landlord's part as to improvements whatsoever.

IV.  GENERAL.

     A. Effect of Amendments. The Lease shall remain in full force and effect
except to the extent that it is modified by this Amendment.

     B. Entire Agreement. This Amendment embodies the entire understanding
between Landlord and Tenant with respect to the modifications set forth in "III.
MODIFICATIONS" above and can be changed only by a writing signed by Landlord and
Tenant.

     C. Counterparts. If this Amendment is executed in counterparts, each is
hereby declared to be an original; all, however, shall constitute but one and
the same amendment In any action or proceeding, any photographic, photostatic,
or other copy of this Amendment may be introduced into evidence without
foundation.

     D. Defined Terms. All words commencing with initial capital letters in this
Amendment and defined in the Lease shall have the same meaning in this Amendment
as in the Lease, unless they are otherwise defined in this Amendment.'

     E. Corporate and Partnership Authority. If Tenant is a corporation or
partnership, or is comprised of either or both of them, each individual
executing this Amendment for the corporation or partnership represents that he
or she is duly authorized to execute and deliver this Amendment on behalf of the
corporation or partnership and that this Amendment is binding upon the
corporation or partnership in accordance with its terms.

     F. Attorneys' Fees. The provisions of the Lease respecting payment of
attorneys' fees shall also apply to this Amendment.

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V.   EXECUTION.

     Landlord and Tenant executed this Amendment On the date as set forth in "I.
PARTIES AND DATE." above.

LANDLORD:                                     TENANT:

THE IRVINE COMPANY LLC                        ALSIUS CORPORATION,
a Delaware limited liability company          a California corporation

By:   /s/ Steven M. Case                      By    /s/ H. Mike Ameli
    -------------------------------------         -----------------------------
    Steven M. Case, Senior Vice President     Name  Mike Ameli
    Leasing, Office Properties                Title V.P. MFG

By:   /s/ Christopher J. Pompa                By    /s/ William J. Worthen
    -------------------------------------         -----------------------------
    Christopher J. Popma, Vice President      Name  Bill Worthen
    Operations, Office Properties             Title CEO

                                      -6-<PAGE>
                                                                Exhibit 4.2(a)

                                 EDENTIFY, INC.
                              74 West Broad Street
                                    Suite 350
                          Bethlehem, Pennsylvania 18018

                                                     As of April 29, 2005

Bushido Capital Master Fund, L.P.
275 Seventh Avenue, Suite 2000
New York, NY 10001

Gamma Opportunity Capital Partners, L.P.
1967 Longwood-Lake Mary Road
Longwood, FL 32750

Dear Sirs:

As you are aware, on April 29, 2005, Edentify, Inc. ("Edentify"), a Delaware
corporation with its principal place of business at 74 West Broad Street, Suite
350, Bethlehem, Pennsylvania 18018 closed on the reverse acquisition with
Budgethotels Network, Inc. ("Budget"), a publicly held Nevada corporation, the
effect of which was Edentify becoming a wholly owned subsidiary of Budget.

This letter will serve to memorialize our agreement to amend certain terms of
the 8% Senior Secured Convertible Debenture of Edentify principal amount
$300,000 to which you subscribed on December 31, 2004 (hereinafter the
"Debenture") and the Common Stock Purchase Warrant granted to you by Edentify of
even date therewith (hereinafter, the "Warrant").

1. The definition of the "Company" set forth in the preamble to the Debenture is
hereby amended to state as follows:

      "Edentify, Inc., a publicly held Nevada corporation, having a principal
      place of business at 74 West Broad Street, Suite 350, Bethlehem,
      Pennsylvania 18018 (the "Company")."

<PAGE>

Bushido Capital Master Fund, L.P.
Gamma Opportunity Capital Partners. L.P.
As of April 29, 2005
Page 2 of 3

2.    Section 4(b) of the Debenture is hereby amended to state as follows:

      "Conversion Price. Upon conversion of any portion of the principal amount
      of this Debenture, the Holder shall be entitled to that number of shares
      of Common Stock equal to such principal amount converted divided by
      $0.15."

3.    The preamble of the Warrant is hereby amended to state as follows:

      THIS COMMON STOCK PURCHASE WARRANT (the "Warrant") certifies that, for
      value received, _____________ (the "Holder"), is entitled, upon the terms
      and subject to the limitations on exercise and the conditions hereinafter
      set forth, at any time on or after the date hereof (the "Initial Exercise
      Date") and on or prior to the close of business on the fifth anniversary
      of the Initial Exercise Date (the "Termination Date") but not thereafter,
      to subscribe for and purchase from Edentify, Inc., a Nevada corporation
      (the "Company"), such number of shares of Common Stock of the Company
      equal to the Holder's Warrant Subscription Amount divided by the Exercise
      Price (the "Warrant Shares"). The purchase price of each Warrant Share
      under this Warrant shall be equal to the Exercise Price, as defined in
      Section 2(b)."

4.    Paragraph 1 of the Warrant is hereby amended to state as follows

      "For purposes of this Warrant, the term "Warrant Subscription Allocation"
      shall mean the Subscription Amount of the Holder on the Closing Date."

5.    Paragraph 2(b) of the Warrant is hereby amended to state as follows:

      "Exercise Price. The exercise price (the "Exercise Price") of each Warrant
      Share granted pursuant to this Warrant shall be $0.15 per share."

All other provisions, terms and conditions set forth in the Debenture and the
Warrant shall remain in full force and effect.

This agreement may be executed in two or more counterparts, each of which will
be deemed an original and when taken together shall constitute one and the same
agreement.

                   [REMAINDER OF PAGE LEFT INTENTIONALLY BLANK
                            SIGNATURE PAGE TO FOLLOW]

<PAGE>

Bushido Capital Master Fund, L.P.
Gamma Opportunity Capital Partners. L.P.
As of April 29, 2005
Page 3 of 3

Please acknowledge your agreement by executing below and returning an executed
copy to me by facsimile and an original executed copy to me by regular mail.

                                            Very truly yours,

                                            /s/ Terrence DeFranco

                                            Terrence DeFranco
                                            Chief Executive Officer

ACKNOWLEDGED AND AGREED TO
as of the date first written above:

Bushido Capital Master Fund, L.P.
By:  Bushido Capital Partners Ltd., General Partner

         By:  /s/ Christopher Rossman
         Name:  Christopher Rossman
         Title:  Managing Director

Gamma Opportunity Capital Partners, L.P.

         By:  /s/ Jonathan P. Knight
         Name:  Jonathan P. Knight
         Title:  Director

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