The Case of the Buried Treasure (Jigsaw Jones Mystery)

"If treasure you seek, you must first find the map."

This is how the note Bigs Maloney finds hidden in his chair begins. The rest is a cryptic riddle promising buried treasure! Only Jigsaw Jones and Mila Yeh can crack the secret message. But when one clue leads to another, the whole class is counting on these two detectives to strike gold.