I think this is my favorite of the series so far! (although The Reptile Room is a close runner-up) I am so glad that these don't stick with the same recycled plot over and over, and that there is, in fact, an ongoing story line. Like in The Miserable Mill, there are some real problems with trying to imagine the time it takes to complete tasks, but it is a very enjoyable and fun read. I loved the ongoing joke of things being "in" or "out" and I never got tired of it. I just really enjoyed this book overall.