The Empty Envelope (A to Z Mysteries)

Don’t miss A to Z Mysteries—alphabetic adventures that are full of thrills, chills, and cases to crack!
 
E is for Envelope...
 
In the fifth book of the A to Z Mysteries—an early chapter book mystery series featuring strong boy and girl characters—Dink keeps getting letters addressed to "D. Duncan." But when he opens them, they all start "Dear Doris" and don't make any sense! Josh and Ruth Rose think someone's playing a trick on Dink. But dink is sure there's more to it than that - especially after Doris Duncan shows up and demands her letters!
 
Each book includes a map and a letter from the author. Parents, teachers, and librarians agree that these highly collectible chapter books are perfect for emerging readers and any kid who love mysteries!

Dink and his friends unearth the mysterious truth behind the envelopes incorrectly delivered to his house.