by Yesuurd Tue May 01, 2012 1:35 pm
OPTION 1: The easier stratagy is to simply die once the alarm is triggered. Dying is actually preferrable here since you are next to a bonfire anyway and, upon respawning, the alarm will have stopped and the Pisacas will be herded in their cell downstairs again. This allows you to get on with your business without having to worry about them. Go left out the cell door, up the ladder (the big door up here is locked until you find the key) and walk to your left. Drop down on to a ledge and into another cell to find the Maiden Armor set and the White Seance Ring inside.
(From Wiki)
Is that it? I can't know for sure what you are seeing and I don't know dukes that well I always speedrun through it.