Gizzard - I agree that the succubus is just a negotiation encounter. However, the big problem for me is that she can simply bully her way out instead.
Once she realized she could not trick them into letting her go, she turned back to her natural state. Bang! Most good-aligned characters are going to react with "oh my god! A demon! kill it!" in which case, she is attacked, then freed. Even if they don't, she tells them she's going to rip them all to pieces if they don't tell her she can leave, and being little level 4 or 5s, they agree, scared out of their wits.
Other than staying in the doorway, and fleeing immediately, the PCs basically don't have much of an option - as you said. And I don't like those encounters. Maybe if you made it such that somehow her powers were repressed while she is trapped - she still has damage reduction, and if she's attacked by good-aligned, then she can still leave ... ?
Unfortunately in my group we had too much metagaming going on. One player, who had written a very similar encounter into another adventure, figured it out right away, and laughed out loud when she piteously asked if it was ok if she left. (His character had just been drained by the allip and at that point had Wis 8, and Int 9 - I don't think his char would have gotten it). I had two other brand-new players, who were of course tipped off that something was wrong, and the encounter folded in on itself.
True, the allip does permanent wis damage, but a good spell will take it out in one shot.
And the neg levs from wight can be taken away by lesser rest I think ... ?
Once she realized she could not trick them into letting her go, she turned back to her natural state. Bang! Most good-aligned characters are going to react with "oh my god! A demon! kill it!" in which case, she is attacked, then freed. Even if they don't, she tells them she's going to rip them all to pieces if they don't tell her she can leave, and being little level 4 or 5s, they agree, scared out of their wits.
Other than staying in the doorway, and fleeing immediately, the PCs basically don't have much of an option - as you said. And I don't like those encounters. Maybe if you made it such that somehow her powers were repressed while she is trapped - she still has damage reduction, and if she's attacked by good-aligned, then she can still leave ... ?
Unfortunately in my group we had too much metagaming going on. One player, who had written a very similar encounter into another adventure, figured it out right away, and laughed out loud when she piteously asked if it was ok if she left. (His character had just been drained by the allip and at that point had Wis 8, and Int 9 - I don't think his char would have gotten it). I had two other brand-new players, who were of course tipped off that something was wrong, and the encounter folded in on itself.

True, the allip does permanent wis damage, but a good spell will take it out in one shot.
And the neg levs from wight can be taken away by lesser rest I think ... ?