Maggie doesn't want to do dissections. At first, it is because she doesn't want to touch the worm she is supposed to dissect, but as she searches her feelings, she realizes that she doesn't want to harm other living creatures. Thus evolves Maggie's conversion to Veganism. Along the way, she discovers that adults can do unfair things and that romance can make you do some dumb things as well.
This is a good read and it raises some nice issues in a context that middle school readers would enjoy. Mills teaches philisophy and this book has a good share of ethics crammed into it, but not in a way that a reader would object to. Maggie can be a bit more insightful about human behavior than a seventh-grader probably is capable of, but that makes her a bit more endearing.
A pleasant book.