A to Z Mysteries: The School Skeleton - Roy, Ron, and Gurney, John Steven (Illustrator)

When a sneaky soul steals the skeleton from the nurse's office at Dink's school, the principal promises free aquarium tickets to the savvy sleuths who track it down. But when mysterious clues show up all over the school, can Dink, Josh, and Ruth Rose put those old bones to rest? Illustrations.