Meg Mackintosh and the Case of the Missing Babe Ruth Baseball - title #1: A Solve-It-Yourself Mystery (1) (Meg Mackintosh Mystery series)
by By Landon, Lucinda
Category: Juvenile Fiction , Mysteries & Detective Stories

In the book that launched her adventures, Meg follows a series of notes hidden in her grandfather's house to solve an old mystery of a missing baseball signed by Babe Ruth. The reader is challenged to interpret each clue before Meg solves it.