Once Upon a KittenGrace Moon Star
Spice, a calico kitten with a pink bow and gold bell, stands among enchanted bookshelves beneath a starry sky.Explore the Books

A little magic to take home

The Kitten Boutique

Stories to share. Kittens to discover. Playful adventures to enjoy together.

Spice and the Lost Endings front cover

Book 1 · Ages 6–8

Spice and the Lost Endings

Join Spice and Misty in a magical library where three stories have lost their endings. A cozy adventure with full-color illustrations and large, easy-to-read text.

Paperback · By Grace Moon Star

Coming soonExplore the book
The Spice Game purple and gold card back with the Once Upon a Kitten logo

Matching card game · Ages 6+

The Spice Game

Bring the kittens and their magical friends to game time. Find matching pairs and share a little friendly fun with family and friends.

Featuring the Once Upon a Kitten cast

Coming soonMeet the Kittens

Once Upon a Kitten series

Small paws.
Big Adventures.

A cozy chapter-book series for readers ages 6–8, filled with curious kittens, gentle humor, magical surprises, and new friendships.

Book 1 · The first adventure

Spice and the Lost Endings

Spice and the Lost Endings by Grace Moon Star

One bell. One mysterious book. One very curious kitten.

Spice has one rule: if something glows, pounce on it.

So when a glowing book leads her into a magical library, she leaps straight into an adventure. Three stories have lost their endings—and someone has been nibbling the pages!

With her new friend Misty beside her, Spice sets out to find the missing words. Along the way, the kittens meet a tiny dragon, a frog who loves to bake, and a butterfly with a secret. Misty likes making plans. Spice likes pouncing. Saving the stories might take a little of both.

But moonset is approaching, and the library’s clock won’t wait.

Can two little kittens put the stories right before the final bell?

Spice and the Lost Endings is the first book in the Once Upon a Kitten series by Grace Moon Star. With full-color illustrations, large, easy-to-read text, and gentle humor, this cozy magical adventure welcomes readers ages 6–8 to a world of missing words, unexpected discoveries, and new friendship.

Coming soon

By Grace Moon Star

Meet the Kittens

Spice’s complete character card, with poses and personality details
Misty’s complete character card, with poses and personality details
Jilly’s complete character card, with poses and personality details

The Author

Grace Moon Star

Stories written for her granddaughters, inspired by the animals they love.

Grace Moon Star created Once Upon a Kitten for her granddaughters, turning familiar animals into characters whose adventures begin with a little curiosity and a touch of magic.

Part of a veterinary family working in Southern California, she draws inspiration from real animals—many of whom share their names with the kittens in her stories.

Through Spice and her friends, she invites young readers to explore friendship, kindness, and the choices that help us grow. At the heart of every adventure is a grandmother’s love and the joy of sharing a story.

Explore the series