From the Files of the Platypus Police Squad Case #1138 Detectives of record: Rick Zengo and Corey O'Malley Case brief: A local schoolteacher is missing, and the only thing fishier than the circumstances surrounding his disappearance is the smell coming from the bag he left behind. All clues point to billionaire businessman Frank Pandini Jr.—but why would Pandini get his paws into the illegal fish trade?

Jarrett J. Krosoczka is back with The Ostrich Conspiracy, the second installment in a fast-paced, action-packed, and hilarious middle-grade series featuring two platypus detectives, perfect for fans of Diary of a Wimpy Kid, Big Nate, and Lunch Lady. The opening of the Kalamazoo City Dome—the world's largest indoor amusement complex—has everyone in the city buzzing, especially because it's going to be the shooting site for Chase Mercy's new blockbuster film. But that's when things start to go haywire. Who would want to sabotage the Dome, and why? Detectives Rick Zengo and Corey O'Malley are on the case!

From Jarrett J. Krosoczka comes Last Panda Standing, the third installment in the hilarious, high-action illustrated middle grade series featuring two platypus detectives, perfect for fans of Diary of a Wimpy Kid, Big Nate, and Jarrett's own Lunch Lady series. The Kalamazoo City mayoral race is heating up, and Frank Pandini Jr. has been threatened by a mysterious assailant. He requests a special Platypus Police Squad protection Detective Rick Zengo. This leaves O'Malley to be partnered up with Jo Cooper, the newest detective on the force. Can Zengo get to the bottom of the attacks—without O'Malley backing him up?

From Jarrett J. Krosoczka comes Never Say Narwhal, the final installment in the hilarious, high-action illustrated middle grade series featuring two platypus detectives, perfect for fans of Diary of a Wimpy Kid, Big Nate, and Jarrett's own Lunch Lady series. Frank Pandini Jr. is the mayor of Kalamazoo City, and everyone is celebrating—everyone except for Zengo, O’Malley, and Cooper, who can’t seem to close a single case. To make matters worse, a mysterious hulking shadow has appeared in waters around KC. Could this spell the end for the Platypus Police Squad?