Subtle Strife

It would seem I am to deliver a message to a rival group in the city. I am sure they won't be happy to see me considering whose interests I represent.
This instance is a 3-Room Maj'Dul Residence.
==Steps==
#Enter a Maj'Dul Residence .
#Kill everyone.
#*Front Room: 2 individual dervish thugs, blue no arrows. Neither sees invis.
#*Side Room: 2 dervish thugs (blue one-down) to the right, 3 dervish thugs (green two-down) in the back. One thug in each group sees invis. The 2 groups are far enough apart to safely pull.
#*Back Room:2 dervish thugs to the right (green one-down), a dervish ringleader and a dervish thug (blue one-down) in the back, and a Maj'Dul aristocrat (NPC). One thug in each group sees invis. The 2 groups are far enough apart to safely pull.
#Kill the aristocrat, which is now attackable (blue one-up with very high magic resistance) 
#Return to any Tears grifter for your reward
==Rewards==
*At least
*One of the following:
**7 Blades insignia tokens
**7 Coin insignia tokens
**7 Truth insignia tokens
== Starting the Quest ==