Pet Whisperer P.I. Books in Order
Part ofMolly Fitz Books in OrderBrowse the Pet Whisperer P.I. books by Molly Fitz in order, with short summaries, series background, and a clear guide to where to start.
Last updated: July 1, 2026
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Pet Whisperer P.I. books in publication order
19 books
Chihuahua Conspiracy
by Molly Fitz
2019
Octo-Cat is sulking, Nan adopts a troublemaking Chihuahua, and an animal shelter is losing money fast. Angie must solve an embezzlement case while getting her furry partners to cooperate.
Dog-Eared Delinquent
by Molly Fitz
2019
An intern with strange abilities enters Angie's life and sets Octo-Cat on edge immediately. To protect her gift and her feline partner, Angie has to uncover the truth behind their powers.
Hairless Harassment
by Molly Fitz
2019
A murder close to home leaves Angie relying on two hairless cats who may be witnesses or suspects. Even Octo-Cat struggles to translate the chaos as she digs into a messy local scandal.
Himalayan Hazard
by Molly Fitz
2019
A cross-country train trip with Angie's parents turns into a murder investigation when a body appears in the dining car. At the same time, family secrets from Nan's past keep tugging at her.
Hoppy Holiday Homicide
by Molly Fitz
2019
A holiday case brings Angie and Octo-Cat face to face with murder, kidnapping, and more seasonal chaos than they can handle. They have to untangle the mess before the celebration turns disastrous.
Kitty Confidential
by Molly Fitz
2019
After a bizarre accident, Angie Russo wakes up able to understand one very demanding cat. Octo-Cat insists his owner was murdered, and Angie is pulled into her first case as an accidental pet detective.
Raccoon Racketeer
by Molly Fitz
2019
Angie's new detective agency is upstaged by a raccoon thief with a habit of stealing shiny things. When one stolen item ties back to Nan's past, the case becomes far more personal.
Terrier Transgressions
by Molly Fitz
2019
Angie's secret is out, and a coworker wants her unusual talent used on a double homicide case. With Octo-Cat grumbling and a grieving Yorkie in the mix, she has to separate truth from confusion.
The Cat Caper
by Molly Fitz
2019
The town's holiday spectacle turns grim when Angie and Octo-Cat find two bodies among the decorations. With suspicion closing in, they race to clear her name before the season is ruined.
Lawless Litter
by Molly Fitz
2020
Valentine's Day plans vanish when a litter of orphaned kittens arrives with clues to a murder. Angie and Octo-Cat must protect the tiny newcomers and solve the case behind them.
Legal Seagull
by Molly Fitz
2020
A pushy bird offers Angie a lead on her missing family member, and a threat if she refuses. The bargain sends her into a strange case involving warring flocks, a road trip, and more family secrets.
Retriever Ransom
by Molly Fitz
2020
Angie's first paying job at her pet detective agency is to recover the mayor's kidnapped golden retriever. What looks simple quickly opens into a mess of politics, grudges, and hidden secrets.
Grizzly Grievance
by Molly Fitz
2021
A romantic RV getaway turns deadly when Angie and Charles stumble into a campground murder. A worried grizzly bear, a sneaky raccoon, and a lot of hidden baggage make it one wild weekend.
Persian Penalty
by Molly Fitz
2021
Angie and Charles follow a lead on her long-lost grandmother to a very suspicious bed-and-breakfast. Missing luggage, rude hosts, and one imperious Persian cat suggest the place is hiding much more than bad service.
Animal Accomplice
by Molly Fitz
2022
Someone discovers Angie's secret ability and starts blackmailing her with proof. For one last case, she and Octo-Cat have to find the threat before her whole life comes apart.
Black Cat Benefit
by Molly Fitz
2022
Nan's elaborate fundraiser for the local animal shelter is supposed to be glamorous, not deadly. When a guest dies mid-event, Angie, Octo-Cat, and a crowd of black cats scramble to save the night and catch the killer.
Deer Duplicity
by Molly Fitz
2022
With her wedding getting close, Angie wants a break from sleuthing, but her new neighbor turns up dead. A shaky motive and a skittish buck put her right back in the middle of trouble.
Honeymoon Hearsay
by Molly Fitz
2022
Angie's honeymoon at an old mansion quickly goes wrong when Charles crashes through a staircase. A lost kitten and whispers of murder keep the newlyweds investigating instead of relaxing.
Scheming Sphynx
by Molly Fitz
2022
Angie's wedding should be simple, but feuding cats, family drama, and surprise guests have other ideas. When the day starts feeling downright suspicious, she wonders whether she will make it to the aisle at all.
Pet Whisperer P.I. books in chronological order

Kitty Confidential
by Molly Fitz
2019Pet Whisperer P.I., Book 1
Terrier Transgressions
by Molly Fitz
2019Pet Whisperer P.I., Book 2
Hairless Harassment
by Molly Fitz
2019Pet Whisperer P.I., Book 3
Dog-Eared Delinquent
by Molly Fitz
2019Pet Whisperer P.I., Book 4
The Cat Caper
by Molly Fitz
2019Pet Whisperer P.I., Book 5
Chihuahua Conspiracy
by Molly Fitz
2019Pet Whisperer P.I., Book 6
Raccoon Racketeer
by Molly Fitz
2019Pet Whisperer P.I., Book 7
Himalayan Hazard
by Molly Fitz
2019Pet Whisperer P.I., Book 8
Hoppy Holiday Homicide
by Molly Fitz
2019Pet Whisperer P.I., Book 9
Retriever Ransom
by Molly Fitz
2020Pet Whisperer P.I., Book 10
Lawless Litter
by Molly Fitz
2020Pet Whisperer P.I., Book 11
Legal Seagull
by Molly Fitz
2020Pet Whisperer P.I., Book 12
Grizzly Grievance
by Molly Fitz
2021Pet Whisperer P.I., Book 13
Persian Penalty
by Molly Fitz
2021Pet Whisperer P.I., Book 14
Deer Duplicity
by Molly Fitz
2022Pet Whisperer P.I., Book 15
Black Cat Benefit
by Molly Fitz
2022Pet Whisperer P.I., Book 16
Scheming Sphynx
by Molly Fitz
2022Pet Whisperer P.I., Book 17
Honeymoon Hearsay
by Molly Fitz
2022Pet Whisperer P.I., Book 18
Animal Accomplice
by Molly Fitz
2022Pet Whisperer P.I., Book 19
Series background & context
Pet Whisperer P.I. is the series most readers start with, and it shows why Molly Fitz works so well in cozy mystery. Angie Russo is in her twenties, smart, drifting, and not entirely sure what to do with her life. Then a bizarre accident leaves her able to understand animals, or at least one animal in particular, a fast-talking, demanding cat named Octo-Cat.
That one gift changes everything. Octo-Cat is convinced his former owner was murdered, and once Angie helps with that first case, she is pulled into a whole new life of side investigations, hidden abilities, and increasingly chaotic animal witnesses. Dogs grieve, cats gossip, birds negotiate, raccoons steal evidence, and Angie is somehow supposed to keep up.
The tone is light, but the series does build. Angie starts out as a reluctant sleuth and gradually becomes the kind of person who can run a pet detective agency, manage a mountain of weirdness, and still worry about family, love, and whether anyone is getting suspicious. That longer arc helps the later books feel connected rather than repetitive.
The animals matter as more than gimmicks. Octo-Cat is funny, vain, and usually convinced he is the brains of the operation, which is part of the charm. But the series also keeps returning to the idea that pets see what humans miss. They notice grief, secrets, routines, and trouble before anyone else does. Angie becomes useful because she can finally listen.
Across books like Kitty Confidential, Terrier Transgressions, Retriever Ransom, and Animal Accomplice, expect small-town mysteries with a paranormal twist, romantic threads, family revelations, and a lot of fur-driven mayhem. The books stay cozy, quick, and easy to binge.
If you want the purest version of Molly Fitz's style, start here. It is funny without being too broad, magical without getting dense, and full of the kind of animal side characters who can steal a chapter with one badly timed opinion.
Edited by
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