[Jerr Conner]

I love that spell myself.

I would introduce another theory, with a little evidence to back it up, but doing so would definitely spoil one major part of the Drizzt novels. (If not two events)

We'll probably have to go with Adalon'sMagic. It seems to register you and a party as Drow.

SPOILER

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Because when you open the gates to the surface, under this spell, they open. Apparently they can only be opened by Drow.

Although, if I remember correctly, Phaere said the Temple Doors were now open to the PC, whereas the Surface Gate wasn't and that's why the spell deactivates on that one.

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The only other thing I can think of is that the Bhaal Powers Augment Adalon's Spell somehow. Although Llolth's love of chaos may still have something to do with it. If you look at it in the sense that

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that if you looted the Jae'Llat (Spelling?) house, you've weakened both of the two powerful houses enough to cause a massive House War between all of the lower houses who want more power...

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