Two owl detectives solve the mystery of the cupcake thief in this installment of a charming early reader series, perfect for fans of the Owl Diaries.These best friends are partners in the Night Owl Detective Agency and work together to solve mysteries!When Monty the chipmunk''s cupcake is stolen, he thinks Sal the groundhog took it. If Wallace and Grace want to prove that Sal is the cupcake thief, they will need to look for clues and talk to witnesses. But what happens when the clues lead them to a cupcake thief they never expected?