It was a cute book! In the beginning I didn't really know how to feel about it, because I didn't know what kind of story this was going to be. Like what was this all about, who was the enemy? Was there any actual danger or was all of it only a children's game? And we did get the answer to this question only in the very end which was probably a bit late. But it all came together very well in the end (I was REALLY shocked by the big reveal!) and it was very well-constructed and a cozy read. It was not just the cozy winter atmosphere that I liked but also the atmosphere created by the stained glass windows because I really love stained glass! And the concept of constructing a story around finding out stuff about a building.