Filed by sedaredgar.com - Blackstone Lake Minerals Inc. - Exhibit 10.2






AMENDMENT AGREEMENT TO TECHNOLOGY PURCHASE
AGREEMENT 

THIS AMENDMENT AGREEMENT is dated as of the 26th day of
November, 2008. 

AMONG: 

NY FINANCIAL (INTERNATIONAL)
CORP., a 
British Virgin Island corporation, of Palm Grove 
House,
P.O. Box 3186, Wickhams Cay 1, Road Town, 
Tortola, British Virgin Islands


(hereinafter called the “Vendor”) 

OF THE FIRST PART 

AND: 

CALECO PHARMA CORP., a
Nevada corporation, of 
8275 S. Eastern Avenue, Suite 200, Las Vegas, Nevada

89123 

(hereinafter called “Caleco”)

OF THE SECOND PART 

AND: 

JOHN BOSCHERT, of #193 -
3rd Street, Villa Cerro 
Lindo Jose Domingo Espinar, Panama City, Panama 

(hereinafter called the “Principal
  Shareholder”)

OF THE THIRD PART 

AND: 

BLACKSTONE LAKE MINERALS
INC., a Nevada 
corporation of #205 – 1480 Gulf Road, Point
Roberts, 
Washington 98281 

(hereinafter called “Blackstone”)

OF THE FOURTH PART 

WHEREAS: 

A.          
The parties entered into a Technology Purchase Agreement (the “Technology
Purchase Agreement”) dated October 16, 2008 pursuant to which the Vendor has
agreed to assign and transfer its right, title and interest in the proprietary
technology and the intellectual property related thereto, including all patent
applications in the United States and Europe, developed by the Vendor for the
treatment of liver disease and other ailments, particularly resulting from viral
infection such as the Hepatitis C virus infection. 

B.          
Under the terms and conditions of the Technology Purchase Agreement, Caleco
agreed to pay the Vendor $50,000 on or before October 26, 2008 (the “First
Payment”) and the parties agreed to close the acquisition of the Technology on
or before December 12, 2008. 




C.          
The Vendor has agreed to extend the First Payment in consideration of Caleco
paying $15,000 of the First payment upon execution of this Agreement. 

NOW, THEREFORE, in consideration for the sum of $10.00
paid by each party to the other parties hereto and for the mutual covenants
contained in this Agreement and other valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, the parties agree as follows: 

	1. 	
      Definition. Except as otherwise set out herein,
      capitalized terms used in this Agreement shall have the same meaning as
      specified in the Technology Purchase Agreement.

	 	 	 	 
	2. 	
      First Payment.

	 	 	 	 
		(a) 	
      Caleco shall pay the Vendor $15,000 of the First Payment
      upon execution of this Agreement by wire transfer of immediately available
      funds to an account designated by the Vendor. As a result of Caleco paying
      $15,000 of the First Payment, the parties agree to amend the due date of
      the balance of the First Payment, being $35,000, to December 12,
    2008.

	 	 	 	 
		(b) 	
      Notwithstanding the fact that Caleco failed to pay the
      First Payment under the Technology Purchase Agreement, the parties agree
      that the Technology Purchase Agreement will be in good standing on the
      payment of the $15,000 to the Vendor.

	 	 	 	 
	3. 	
      Amendment. The parties agree to amend the
      Technology Purchase Agreement as follows:

	 	 	 	 
		(a) 	
      Section 9 of the Technology Purchase Agreement is
      replaced in its entirety with the following:

	 	 	 	 
			
      “As further consideration for the Technology and the
      Intellectual Property, Caleco shall reimburse the documented costs related
      to the recording of the Patents and the EDMFs, which shall not exceed an
      aggregate of 580,000 EUR and shall be payable by wire transfer or
      immediately available funds to an account designated by the recipient as
      follows:

	 	 	 	 
			(a) 	
      50,000 EUR on or before Closing.

	 	 	 	 
			(b) 	
      50,000 EUR on or before December 31, 2008.

	 	 	 	 
			(c) 	
      220,000 EUR on or before January 16, 2008.

	 	 	 	 
			(d) 	
      260,000 EUR on or before January 31, 2008.

	 	 	 	 
			
      All payments will be remitted to the designated
    account(s) provided exclusively by the Vendor.”

	 	 	 	 
		(b) 	
      Section 14 of the Technology Purchase Agreement is
      replaced in its entirety with the following:



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“If Blackstone or Caleco fail to
  raise financing of at least $2,500,000 by April 30, 2009, then the Vendor shall
  have the option, exercisable by the Vendor by giving written notice of such
  exercise to Caleco and Blackstone by the date that is six months thereafter,
  to repurchase the Technology, Intellectual Property and Know-How from Caleco
  at a price of 550,000 Euros (provided that the payments for the documented costs
  related to the recording of the Patents and the EDMFs have been paid, and to
  the amount that has not been paid, the 550,000 EUR shall be reduced by the amount
  not paid) such repurchase is subject to the Vendor re-transferring the Principal
  Shares to the Principal Shareholder. In connection with the financing of $2,500,000,
  Blackstone shall issue not more than 20,000,000 shares of its common stock”.

	4. 	
      No Other Modification. The parties confirm that
      the terms, covenants and conditions of the Technology Purchase Agreement
      remain unchanged and in full force and effect, except as modified by this
      Agreement. Without limitation of the foregoing, nothing in this Amendment
      Agreement shall eliminate Caleco’s obligation to make the payment of
      $50,000 at the Closing as provided in Section 8(b) of the Technology
      Purchase Agreement or to deliver the 32,000,000 shares of Blackstone at
      the Closing as provided in Section 10 of the Technology Purchase
      Agreement.

	 	 
	5. 	
      Counterparts. This Agreement may be executed in
      two or more counterparts, each of which shall constitute an original, but
      all of which, when taken together, shall constitute but one instrument,
      and shall become effective when one or more counterparts have been signed
      by each party hereto and delivered to the other parties.

	 	 
	6. 	
      Successors and Assigns. Except as otherwise
      expressly provided herein, the provisions hereof shall inure to the
      benefit of, and be binding upon, the successors, assigns, heirs, executors
      and administrators of the parties hereto.

	 	 
	7. 	
      Entire Agreement. This Agreement constitutes the
      full and entire understanding and agreement between the parties with
      regard to the subject hereof.



IN WITNESS WHEREOF, the parties have duly executed and
delivered this Agreement as of the date first written above. 


NY FINANCIAL (INTERNATIONAL) CORP. 
By its
authorized signatory: 

/s/ F. Javier Benedi
Garcia                              
Signature
of Authorized Signatory 

__________________________________
F. Javier Benedi Garcia

Name of Authorized Signatory 

Sole
Director                                                       

Title 

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CALECO PHARMA CORP. 
By its authorized signatory:


/s/ John
Boschert                                             
Signature
of Authorized Signatory 

John
Boschert                                                 
 
Name of Authorized Signatory 

President, Secretary and
Treasurer              

Title 

 

BLACKSTONE LAKE MINERALS, INC. 
By its authorized
signatory 

/s/ John
  Boschert                                             

Signature
  of Authorized Signatory 

John
  Boschert                                                   

  Name
of Authorized Signatory 

President, Secretary and
  Treasurer              
  

Title 

 

/s/ John
Boschert                                             

JOHN
BOSCHERT 

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