The Pet Detective Mysteries

Kassy O’Roarke, Cub Reporter is a juicy middle grade mystery in which a young investigator learns that it’s okay to be vulnerable.”
—Foreword Reviews
“For everyone who’s into adventure, mystery, and a whole bunch of Middle-Grade fun, this first in series does the trick! Beware, you won’t want to set this book down anytime soon. Recommended.”
—Chanticleer Reviews
“A new literary role model in the style of Nancy Drew will find her way into the hearts of her audience.”
—Recommended, US Review of Books
“[Will] entertain both animal and mystery lovers of all ages. Most highly recommended!”
—Reader’s Favorite Reviews
“Oliver writes in a breezy, kid-friendly style that’s perfect for early middle schoolers… the book is a polished, convincing, kid-centered adventure, with endearing characters and a strong sense of middle-school humor…a strong series debut.”
—BlueInk Review
“Engaging and fun…Kassy O’Roarke, Cub Reporter is well-written and likely to entertain both animal and mystery lovers of all ages. It’s most highly recommended.”
—Jack Magnus, 5-Star Review, Reader’s Favorite Reviews
Kassy O’Roarke, Cub Reporter is a whole lot of fun and delivers in every way an adventure story should. The twists and turns in the mystery are clever and unpredictable”
—Sarah Scheele, 5-Star Review, Reader’s Favorite Reviews
“I was hooked by the first page and enjoyed the entire story. The plot has twists and turns and is sure to keep readers on their toes as they read it.”
—Kristen Van Campen (teen reviewer), 5-Star Review, Reader’s Favorites
“Kassy O’Roarke is a modern day Nancy Drew. I love Kassy. The themes of loyalty and friendship are strong…making this the perfect middle grade novel. I adore this book and cannot wait to purchase it for my students. They are going to love it!”
—Librarian Fitz Bookstagrammer

Kassy O’Roarke Geocacher

Book 3

Just days before her thirteenth birthday, Kassy’s only wish is to escape from the cramped tent she shares with her brother and his farting ferret, her not-quite stepsister and her squirmin’ vermin puppy… and a miniature goat with an appetite for underwear.

Kiki the koala needs to get to the National Zoo in Washington, and the gang is on the world’s most fun road trip to get her there. On the way, they camp in the Shenandoah National Forest, where they enter a geocaching contest full of riddles and puzzles to test even the brainiest middle graders.

Determined to win the contest—and a brand-new tent—Kassy faces off with the cheating Cheevers and risks losing Kiki for good. Can the gang outsmart the Cheevers, win the contest, and get Kiki to her new home at the zoo?

Join Kassy’s fun-filled middle-grade adventure cracking riddles, detecting clues, and solving a whole zoo of animal trouble in the third book in the Pet Detective Mysteries.

Kassy O’Roarke Treasure Hunter

Book 2

Pets are disappearing from Lemon Tree Heights. With her family’s petting zoo at stake, Kassy has to stop the dognapping ring, and fast.

Hot on the trail of a missing cockapoo, Kassy discovers a mysterious key and a treasure map hidden inside a wall. Just when she’s close to cracking the case, her brother Crispy and his faithful ferret Freddie go missing.

To find her brother and the missing pets, Kassy gathers all her courage and ventures into the local cemetery. But can she unlock the clues and save the petting zoo in time?

Join Kassy’s fun-filled middle-grade adventure cracking riddles, detecting clues, and solving a whole zoo of animal trouble in the second book in the Pet Detective Mysteries.

Kassy O’Roarke Cub Reporter

Book 1

Twelve-year-old Kassandra O’Roarke wants to win the Thompson prize at her school newspaper. Her pesky little brother Percy tries to help. That’s when the trouble begins.

When Apollo the cougar cub goes missing from their petting zoo, Kassy puts her detective skills to the test to find him before Animal Control does. To get him back, Kassy must reconcile with Percy, break Apollo out of Animal Control, and risk being grounded for life.

Cub Reporter is book one in the Kassy O’Roarke Pet Detective Mysteries by Award-Winning and Bestselling author, Kelly Oliver.

Kassy O’Roarke Pet Detective Activities Book

The Kassy O’Roarke Pet Detective Activities Book is overflowing with riddles, puzzles, brain-teasers, and of course a whole zoo full of fun animals.

Get out your markers and crayons… and then put on your thinking-cap and help Kassy figure out “whodunnit.”

“Where was Kassy when I was growing up? With jokes, riddles, puzzles, and mysteries for to solve, this series is sure to provide hours of entertainment. These books will hone reasoning skills while also being lots of fun. I highly recommend this collection for any budding sleuth!”
—Claire Katz, director of the Philosophy for Children Texas Program and the Philosophy Camp for Teens and Tweens

“Kassy O’Roarke is even more exciting than the Mysterious Benedict Society! The books make you feel like you’re really inside the adventure, like you’re really a part of it. The mysteries have many fun animals and twists. These are excellent books for young journalists and detectives! The activity book adds lots of fun coloring pages, riddles, and small mysteries for you to solve!”
—Mila Neely, Fan Review

Virtual Visits

Bring Kelly Oliver into your school, classroom, or library

Kelly loves making virtual visits via Skype, FaceTime, or Google Hangout to schools, classrooms, and library groups that have read Kassy O’Roarke, Cub Reporter.

If you’re a teacher or librarian and your class/school/library group has been reading Kassy O’Roarke, Cub Reporter, just request a visit at

In your request, please include your name, contact information, the grade level and number of students, your preferred virtual technology, and three possible dates and times (in CST).

Virtual Visits are FEE FREE as a way of saying thank you for reading Kelly’s books. Sessions typically last twenty minutes and work best when the students come prepared with questions and then step up to the laptop/camera to ask them.