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Theodore: The Cat That Knew Too Much
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May 18, 2027

A dark psychological crime thriller told through the eyes of a cat whose former owner was a serial killer. With his followers still at large, Theodore and his family face a relentless campaign of stalking, murder and intimidation.
We survived a serial killer and escaped his followers. So why do I still feel watched?
I saved Tabios.
That should have been the end of it.
But Dean’s followers are still out there. Watching. Waiting.
So we hide.
Together with Jane and Nash, we stay out of sight in Capital City, trying to figure out our next move. But the longer we wait, the clearer it becomes—
They’re not going away.
They’re learning.
Jane refuses to live in fear and takes us back home. That’s when we meet Christoph—the new neighbour. Something about him doesn’t feel right. And yet, we can’t look away.
Then a murder shakes the building.
And suddenly, the truth we’ve been chasing starts to unravel.
Because someone is pulling the strings.
Someone far more dangerous than we imagined.
And stopping them might cost us everything.
The Cat That Knew Too Much is the fifth book in J.S. Ellis’s Theodore: The Neighbour’s Cat series. A dark psychological crime thriller of stalking, paranoia and murder, told from an unusual feline perspective as Theodore fights to keep his family safe from a threat that refuses to disappear.
This book contains scenes that some readers may find disturbing.
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Praise for Theodore the Neighbour’s Cat Series:
★★★★★ “This is a must read for anyone who likes thrillers and cats!”
★★★★★ “An enjoyable read for cat-lovers and crime fiction enthusiasts alike.”
★★★★★ “The story gets so tense I had to know what would happen.”
★★★★★ “It’s cleverly written with a lot of suspense and turns.”
★★★★★ “J.S. Ellis has a knack for expressing the cat's eye view in a manner that allows her books to be seriously suspenseful, not only cute and humorous.”
★★★★★ “Easy to read but the plot kept me turning the pages.”
★★★★★ “I was on the edge of my seat reading this book excellent suspense lots of clues to keep you guessing. A must read.”
★★★★★ “This story is fast paced and has very interesting characters too.”
★★★★★ “Definitely filled with thrills and suspense.”
In addition to animal fiction, J.S. Ellis writes psychological thrillers exploring obsession, secrets, manipulation, and the darker side of human nature. Her stories are often inspired by her fascination with complex characters, hidden motives, and the question of how well we truly know the people around us.
When she isn't writing, she can usually be found reading, researching her next novel, or spending time with her family.