Cozy Mysteries With Very Good Pets

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The cozy crowd pleaser: whodunits where the sharpest detective in the room has whiskers, a wet nose, or a strong opinion about dinner being late.

Let’s be honest about why some of us pick up a cozy mystery. Yes, we want the puzzle. Yes, we want the quaint town with one bakery, one bookshop, and a statistically alarming murder rate. But mostly? We want the cat on the windowsill who knew who did it on page 12 and has simply been waiting for the humans to catch up.

The pet is the secret ingredient of the cozy mysteries. A good one lowers your blood pressure between bodies. A great one finds the clue, trips the villain, and still expects a treat for it. Here are the series where the animals don’t just ride along. They carry the case.

The Cats Who Run the Investigation (and the Household) in Cozy Mysteries

The Cat Who Could Read Backwards by Lilian Jackson Braun

The grand-dame of the genre, first published in 1966. Journalist Jim Qwilleran has the mustache, but Koko the Siamese has the instincts, and later his companion Yum Yum adds a talent for stealing small objects at suspiciously helpful moments. Koko communicates by knocking books off shelves, which, if you live with a cat, you’ll recognize as nonfiction. With more than two dozen “Cat Who” titles, this is a series you can settle into for a long winter.

Very good pet because: Koko is clearly the senior partner. Qwill is the help. [Buy]

Wish You Were Here by Rita Mae Brown and Sneaky Pie Brown

The author shares the byline with her cat, which tells you everything about the power structure here. Postmistress Mary Minor “Harry” Haristeen investigates murders in small-town Crozet, Virginia, while her tiger cat Mrs. Murphy and corgi Tee Tucker hold their own (far more competent) investigation in the background. The animals talk to each other, but not to the humans, which leads to a lot of exasperated eye-rolling on four legs.

Very good pet because: A cat and a corgi working together is the buddy-cop pairing we didn’t know we needed. [Buy]

Murder Past Due by Miranda James

Librarian Charlie Harris of Athena, Mississippi, walks his cat on a leash. His cat is Diesel, a Maine Coon roughly the size of a small ottoman who chirps and trills instead of meowing, and who is a far better judge of character than anyone in town. The “Cat in the Stacks” series is warm, Southern, and bookish in the best way, with Diesel providing comfort, intuition, and the occasional strategic hiss.

Very good pet because: He’s a gentle giant who knows exactly which suspect deserves suspicion. [Buy]

Curiosity Thrilled the Cat by Sofie Kelly

If you like your cozy with a pinch of magic, meet Owen and Hercules, the strays who adopt librarian Kathleen Paulson in Mayville Heights, Minnesota. Owen can turn invisible. Hercules can walk through walls. They use these gifts for sleuthing and also, naturally, for eating snacks they were not offered. The “Magical Cats” series is pure comfort reading with a library at its heart.

Very good pet because: They’re superheroes, but the cat kind, so they only help when they feel like it. [Buy]

Cat on the Edge by Shirley Rousseau Murphy

Joe Grey is an ordinary tomcat in the seaside village of Molena Point, California, until he witnesses a murder and discovers he can suddenly talk. And read. And make anonymous phone calls to the police. The Joe Grey series is snappy and a little noir, and Joe himself is a magnificently grumpy narrator-adjacent hero.

Very good pet because: He’s a tomcat with a tip line. Crime doesn’t stand a chance. [Buy]

Double Booked for Death by Ali Brandon

A Brooklyn bookstore, an inherited business, and a large black cat named Hamlet who has opinions about the inventory and the customers. Darla Pettistone’s “Black Cat Bookshop” mysteries are a natural pick for anyone who reads cozies and dreams of owning a bookshop. Hamlet points to clues the way he points to everything: with total disdain and perfect aim.

Very good pet because: A bookstore cat who’s also a detective is basically the reader’s fantasy squared. [Buy]

The Dogs Who Do the Legwork in Cozy Mysteries

Dog On It by Spencer Quinn

The whole book is narrated by Chet, a big, loyal, slightly distractible dog who partners with private investigator Bernie Little. Chet notices smells, sounds, and the honest truth about people, then gets sidetracked by a sandwich. It’s very funny, surprisingly touching, and the voice is so convincing you’ll start looking at your own dog differently. The Chet and Bernie series has many sequels, and they keep earning their treats.

Very good pet because: Chet is the most lovable narrator in the genre, and he would want you to know that. [Buy]

A Pedigree to Die For by Laurien Berenson

Schoolteacher Melanie Travis is pulled into the cutthroat world of dog shows, where the grooming is meticulous and the motives are even more so. Her standard poodles are elegant, smart, and absolutely central to the action. Berenson clearly knows the show ring, so you get insider detail along with your whodunit.

Very good pet because: Proof that a perfectly groomed poodle can also be a perfectly good partner. [Buy]

Murder, She Barked by Krista Davis

Welcome to Wagtail, Virginia, a small town that is deliberately, wonderfully pet-friendly. Holly Miller comes home to help her grandmother with the family inn and promptly trips over a mystery, assisted by Trixie, a Jack Russell terrier, and Twinkletoes, a calico cat. The “Paws & Claws” series feels like a vacation where everyone, including the dogs, gets room service.

Very good pet because: It’s a whole town built for pets. The murders are just a scheduling issue. [Buy]

Classic and Cozy-Adjacent Paw Prints

Dumb Witness by Agatha Christie

The Queen of Crime got there early. In this 1937 Poirot mystery, a wire-haired terrier named Bob is blamed for a fall on the stairs involving his ball. Poirot, naturally, suspects the dog was framed. Bob is no talking sleuth, but he’s the hinge the whole case turns on, and he’s an absolute charmer.

Very good pet because: Wrongly accused, nobly vindicated. Justice for Bob. [Buy]

Open and Shut by David Rosenfelt

This one is more courtroom than cozy, but readers who love dogs adore it anyway. Defense attorney Andy Carpenter of Paterson, New Jersey, is witty, wealthy, and devoted to his golden retriever, Tara. The series grew to include a dog-rescue foundation and plenty of canine-centered plots. Come for the banter, stay for Tara.

Very good pet because: Andy treats Tara like the best dog in the world, and he isn’t wrong. [Buy]

Which Cozy Pet Mystery Should You Read First?

• If you want a classic to binge: start with Koko in The Cat Who Could Read Backwards.
• If you want to laugh out loud: Chet in Dog On It is your guy.
• If you love libraries and books: pick Murder Past Due or Curiosity Thrilled the Cat.
• If you like a touch of magic: Curiosity Thrilled the Cat or Cat on the Edge.
• If you want small-town warmth: Wish You Were Here or Murder, She Barked.
• If you’re a traditionalist: let Poirot and Bob show you how it’s done in Dumb Witness.

Cozy Mysteries: The Final Clue

The best cozy mysteries promise that order will be restored, justice will be served, and nobody you truly love will get hurt. The pets make that promise feel real. They’re loyal, a little ridiculous, and smarter than they let on, which is also a fair description of most cozy heroines.

So pour the tea, find the blanket, and make room on the couch. Your own furry sidekick will probably want to read along. Just don’t let them spoil the ending.

What’s your favorite cozy mystery pet? Tell us in the comments. We’re especially interested in hearing from anyone who suspects their cat is secretly solving crimes.