A Piece of the Moon is Missing, #5

Somebody swipes a valuable moon rock from an observatory in Oshkosh. When the Ryder family arrives on the scene, May wants to help. Can a 12-year-old girl figure out a mystery that's really "out of this world?" Only time will tell! 124 pages, softcover. Approximately Grades 3-4.

The Mystery Ryders series is a collection of kid-friendly adventures about a girl detective who travels with her family on board their private train car, crisscrossing America, finding adventure along the way. Each story is told by the detective herself, May Ryder, who, with the help of her brainy big brother, never stops trying to do the right thing as she solves her next big case.