The Mysterious Case of the Golden Egg: A Middle Grade Book | (Chapter Books for Kids 9-12)

A middle grade mystery from USA TODAY BESTSELLING AUTHOR Ernie Lindsey...

The sudden and unexpected arrival of a mysterious package interrupts would-be private investigator Hat Tintersmoot's twelfth birthday. Once she discovers that the small cardboard box is a present from her Grandpa Gordon, the mystery deepens . . . considering the fact that he passed away three years earlier.

It's another perfect job for the owner of The Marshmallow Hammer Detective Agency. With the help of a new best friend, Hat must solve five nearly impossible clues in order to uncover the baffling truth behind such a perplexing, invaluable gift.