Zeus takes his job as the service dog for diabetic Madden very seriously. All Madden wants to do is blend in with other middle-schoolers, but that's hard to do with a big German Shepard by your side. Madden also has musical talent and dreams of winning the state band competition. But because of its ability to draw attention to Madden, Zeus decides that music is the enemy which leads to a series of misguided attempts to help him.

"Andy Carpenter's wife, Laurie, was a cop, a good one. Now she helps out on Andy's cases while also raising Ricky, their son. But she's been chafing to jump back into investigating on her own, and when her former partner and his German shepherd K-9 partner come to her with a proposal, she's in. From the author of the bestselling Andy Carpenter mysteries comes a spectacular new series with a K-9 main character" --

A German shepherd is transformed from Etzel, a police dog in Berlin, to Strongheart, a silent movie star that will need his best acting skills to prove himself innocent of attacking a girl.--Provided by Publisher.

"In Citizen K-9, bestselling author David Rosenfelt masterfully blends mystery with dogs and humor to create an investigative team that readers will be rooting for book after book. The Paterson Police Department has created a cold case division, and they want to hire the private investigators known as the K Team to look into the crimes. After all, Corey Douglas and his K-9 partner, German shepherd Simon Garfunkel, recently retired from the force....

"For the K Team, playing "good dog", "bad cop" is all fun and games... until there's a body on the scene, in the next K Team Novel by bestselling author David Rosenfelt. The K Team enjoys investigating cold cases for the Paterson Police Department. Corey Douglas, his K-9 partner Simon Garfunkel, Laurie Collins, and Marcus Clark even get to choose which cases they'd like to pursue. When Corey sees the latest list of possibilities, there's no question...

Alfie Wolfe thinks his twin sister is the biggest pain in the world and they are constantly getting into fights, until he observes how patiently the German shepherd Crosby at the Hound Hotel behaves with his super annoying little "brother" puppy, Bruno.

Retired police dog Dodge and his girl Cassie investigate the death of town eccentric Madame LeFarge, and in the course of their investigation--which leads them to take home one of her foster kittens--they begin to suspect that Madame LaFarge was murdered.