I find it a little hard to focus on interactive fiction, so I only saw the room with the spellbook. The transformation is well-written, although it was more graphic than I expected, so maybe I should've heeded the warnings a little more closely.
Also I think there's a bug in the exits? The spellbook room says the north exit is blocked, but I was able to go north and I ended up in a room that didn't appear properly connected to the spellbook room.
Anyway, not to be too negative! This looks interesting from what little I saw, and I might come back to it later if I can muster a bit more focus next time. Maybe I'll draw my own map so I can keep track of where I am.