Reigning Cats and Dogs Mysteries Books in Order

This is the series that made Cynthia Baxter's mystery name stick. The Reigning Cats and Dogs books follow Jessica Popper, a Long Island veterinarian with a mobile practice and a bad habit, or a useful habit, of getting involved in murders. She is smart, stubborn, and much better at reading animal behavior than human motives, which makes her a natural cozy sleuth.

She is rarely alone.

Jessica's world is full of animals, and they are not just decoration. Her one-eyed Dalmatian Lou and tailless Westie Max are part comic relief, part clue-finders, part emotional support team, and they help give the series its personality. The books also make good use of Jessica's work. Because she travels to clients, she has a reason to move through very different corners of Long Island society, from horse farms and dog shows to wealthy estates and private schools.

That range is one of the pleasures of the series. Long Island is not treated as one thing. It can be rural, showy, old-money, beachy, cramped, polished, or faintly absurd depending on where Jessica's next case takes her. Baxter clearly enjoys those contrasts, and Jessica often finds herself caught between ordinary local life and circles that take themselves far too seriously.

The ongoing human anchor is Nick Burby, Jessica's investigator boyfriend and later husband. Their relationship brings a little romantic tension and a little emotional steadiness to the books, especially because Jessica's cases have a way of colliding with her personal life. In Dead Canaries Don't Sing, she discovers a body while responding to a house call near a horse farm. In Putting On The Dog, a charity dog show turns lethal. Lead a Horse to Murder brings her into the horse-show set again, while later books like Murder Had a Little Lamb and Crossing the Lion fold murder into weddings, schools, and stormy island mansions.

The tone is classic cozy, but the plots can get fairly busy. Jessica is often juggling suspects, class tensions, local politics, and the practical needs of her practice at the same time. Because she knows so many people through work, every investigation feels a little personal. That helps keep the books from turning into pure puzzle fiction. The emotional stakes are usually close to home.

Readers who come for the animals will get them, but the deeper draw is Jessica herself. She is competent without being slick, compassionate without being soft, and nosy in a way that feels earned. She steps into danger because she cannot quite stand leaving a question unanswered, especially when someone around her is being lied to, threatened, or written off.

If you want cozy mysteries with pets, plenty of Long Island atmosphere, and a sleuth whose day job shapes every case, this is the place to start. The books are funny in spots, tense when they need to be, and very comfortable in their own skin. They know exactly what kind of series they are, and that confidence helps.