Quote Originally Posted by Dr. Cthulwho View Post

How, when Celia says that "one of you of pure heart" can activate the sigil V doesn't indicate that could include her. Or that it would exclude her. As it is Haley is the one who does the actual activating.

I guess it depends on how "pure heart" is defined. If a rogue (granted a very nice rogue) can be pure hearted, then neutrals can probably have a pure heart as well.
I agree, and think even an evil character can have a "pure heart" under the right circumstances. In that context, it's less about good/evil and more about what the character's intentions are for activating the sigil. The Linear Guild certainly had unpure hearts when it came to the sigils, so they were excluded. The Stick, however, had good intentions (or lacked evil intentions), so they were good to go.

That said, I can't imagine Thog having any clue or intention as to why they needed to touch the sigils. So I may be wrong about the whole evil thing.