The little Doorway in the north of the room. Pulled with my rogue who went invis as soon as the fight started. Eder tanking in the doorway with Durance buffing/healing and hitting with his staff. Chanter buffing and shooting his gun. and Aloth doing flames sheenanigans to wipe most of them. Did it with 5 (actually 4, my PC rogue died quickly) on normal.