Ferreting out your mysteries — one clue at a time.
The fish tank is shattered. The living room floor is soaked. And every finger in the Castellano household is pointing at Colonel Mustard, the family's enormous, imperious Persian cat.
There's just one problem: Biscuit doesn't think he did it.
Biscuit is a ferret. She can't talk, can't text, and definitely can't explain to the Castellano family that they've got the wrong suspect. But she can observe. She can deduce. And with her impulsive, tunnel-happy partner Wren at her side, she can launch a full investigation — even if the humans have absolutely no idea it's happening.
The clues don't add up to a cat. The clues add up to something else entirely. Something that came in through a loose window at 2:47 in the morning. Something that left behind a single gray feather, a strange smell, and one very important question that Biscuit isn't ready to answer yet.
Meanwhile, eleven-year-old Milo Castellano is beginning to notice that his ferret seems to know things she shouldn't. He's written it down in his science notebook under Unexplained Phenomena.
He is not wrong.
The Case of the Framed Feline is the first episode in the Biscuit & Wren: Ferret Detective Agency series — a funny, fast-moving mystery series for middle grade readers featuring two ferrets with big detective energy, a household full of lovable suspects, and a season-long mystery that's only just getting started.
Perfect for fans of A to Z Mysteries, Hilo, and Desmond Cole Ghost Patrol.
FAQs
For Young Readers
Can I start with any episode, or do I have to read them in order?
Each episode is its own complete mystery with a beginning, middle, and end — so you can jump in anywhere and still solve the case alongside Biscuit and Wren. That said, if you read them in order you'll pick up on some sneaky clues that run through the whole season. (Biscuit definitely notices things that don't get explained right away. She files them under pending.)
Are Biscuit and Wren real ferrets?
They're fictional, but ferrets really do behave a lot like Biscuit and Wren — curious, clever, surprisingly sneaky, and absolutely obsessed with tunneling into places they don't belong. If you've ever met a ferret, you'll recognize them immediately.
How many episodes are there?
Season 1 has ten episodes, each one a complete mystery. There's also a Season 1 collection that bundles all ten together. And yes — Season 2 is already being planned, because Biscuit still has some things filed under pending.
Will Milo ever figure out that Biscuit and Wren understand everything?
He's getting closer. He has a science notebook with a section called Unexplained Phenomena and he is filling it up. That's all we're saying for now.
Is Colonel Mustard actually innocent?
In Episode 1? Yes. Entirely. One hundred percent. Dad was right all along, which is both satisfying and slightly annoying for everyone else in the household. Beyond Episode 1... well. Biscuit keeps a file on him.
Do the ferrets ever get in trouble?
Constantly. But they're very good at looking innocent afterward.
Is this series scary?
Not at all! The mysteries are puzzles, not frights. There's plenty of humor, a lot of heart, and absolutely no jump scares. Even the most suspicious episode is more cozy mystery than scary story. (If you like spooky, check out the Children's Spooky Blog — but that's a different shelf entirely.)