BookMoot gives a lovely, rousing review of BABYMOUSE: DRAGONSLAYER! Some highlights:
So, I'm looking at books in the children's section at Boulder Bookstore and I hear a snicker, then a cough of laughter, then that sort of sustained snort that morphs into a laughing guffaw. I looked over my shoulder and saw a boy, I would peg him at 5th grade, reading ... a Babymouse book. He was smiling as his eyes darted across the pages which were being turned eagerly.
... I completely identify with Babymouse's wail, "But I'm not good at math!" The dragon that Babymouse must slay is MATH.
... It is important to realize that just because we do not understand a subject or it is difficult does not mean we cannot get better at it with practice and stick-to-it-ness. The Holmes sibs never hit the reader over the head with "the lesson" or "moral of the story" though. They just tell a hilarious tale of an endearing and brave everymouse who is doing the best she can. I will NOT give away a single one of the extremely witty allusions because their appearances will delight the reader.
I *heart* Babymouse. I am Babymouse.