From New York Times bestselling creators--Emmy Award-winning actor Henry Winkler, children's book author Lin Oliver, and Caldecott Medal-winning author-illustrator Dan Santat--comes a hilarious, full-color chapter book adventure.

When the Pond Squad is invited to participate in the Emerald Pond Games, they can't wait to compete. Playing sports, making new friends, and spending time with Maxwell--Emerald Pond's cool mallard duck--sounds like a perfect afternoon to Willow.

But when Maxwell mysteriously disappears in the middle of a game, the animals know something's wrong.

With all the strange plastic items floating around the pond, Willow is sure Maxwell is in danger. Fortunately, Detective Duck is on the job, solving these puzzling mysteries before they get out of hand and destroy another habitat!

The Pond Squad will have to work together to clean up their environment and rescue Maxwell in this charming new mystery.

Quacking good fun from the Detective Duck series:

• Detective Duck: The Case of the Strange Splash (#1)
• Detective Duck: The Case of the Missing Tadpole (#2)
• Detective Duck: The Mystery at Emerald Pond (#3)