Platypus Police Squad: The Frog Who Croaked is the first in a series of zany, action-packed middle grade mysteries featuring platypus police detectives Rick Zengo and Corey O'Malley.

When a call comes in about a crime down at the docks involving a missing schoolteacher and a duffle bag full of illegal fish, Zengo and O'Malley are going to have to learn to set their differences aside if they want to get to the bottom of