Absolutely wonderful game. Just finished it. I got stuck twice, once at the very beginning and also couldn't figure out how to get the book in the terrarium. (In hindsight I feel stupid for not figuring that one out myself.) My only small criticisms would be that it was annoying when objects would change names when you picked them up (especially books) and it could use a little more "fleshing out" when it comes to descriptions. Objects that are mentioned in room descriptions were not examinable, and sometimes it was tricky to figure out exactly how to do certain things - you needed to phrase things correctly.
These are very minor quibbles though. All in all it was an excellent story!