Lesson learned on the lack of an edit feature :(
Well I ran this with a Level 3 Bard Archeologist, Level 2 Conjurer, Level 2 Druid and Level 1 Amiri (pregen). The First encounter with the thugs was a piece of cake. The group caught on that they were not the true occupants of the house early but devised their own plan to subdue the thugs and question them.
The trap on the stairs was subverted with a perfectly timed natural 20 on the perception check.
The Soulbound Doll was not all that difficult, in fact after a failed suggestion attempt the bard decided to play a somber dirge anyway causing the Doll to begin dancing much to the surprise of the rest of the group. The conjurer finished it off with a magic missile and the bard finished the dirge off with a nice happy ending.
The Dark Creeper in the library could have gone much worse had the group not all retreated to the work room and took the time to search the place over and read as many notes as they could. The Dark Creeper retreated to the well room to set an ambush that the Barbarian didn't fall for and immediately turned the creature into a puff of light and a pile of rags.
We had to skip the bat encounter as we were already 3.5 hours into the scenario so onto the big bad Dark Stalker. Being that there were only 3 players and the pregen i decided to give them 1 full round to see the room before the Stalker appeared began initiative. The encounter was made MUCH easier since the druids pet could track by scent allowing them to pinpoint the location easier with successful Perception checks. The 50% miss chance still proved to be tough but between a round spent knocking Amiri unconscious and two rounds getting tripped by the druids pet, the Bard and Druid and pet finally defeated the Stalker. I believe the whole fight went 6 maybe 7 rounds. A first round cure light wounds on Skeldon gave the group a small breather with regards to his lifespan.
The poison, while not devastating took its toll. Everyone but the Druid fell victim to at least 1 dose of the poison. Amiri was healed a few hp before death. She took a double hit for 23 damage total. That was the only round the Stalker got a full attack action..