A bit late to the party, here, but I've got a couple of question about this book.
1. Where are all the demons coming from? I'd have assumed Nolveniss, but as an Illusionist, he cannot summon or bind demons.
2. The Observatory - in the flavor text for Q1 it states the central tower is a "large domed structure", but the text for Q11 states it is a "large open-air rooftop". Which is true - enclosed dome or open-air platform?