Ravi, the protagonist of this collection of 14 malicious and delicious mathematical mysteries not only gets the job done quickly and thoroughly, but he takes readers behind the scenes to guide them through the process of solving the crime with mathematics and physics roughly equivalent to that taught at a decent high school. The result is a series of entertaining stories teachers can use to entice students into the beautiful world of math, or which students can use on their own to supplement their high school courses. Annotation ©2007 Book News, Inc., Portland, OR (booknews.com)