Join four Dinosaur Space Rangers on a galaxy-spanning mission filled with mystery, friendship and unforgettable discoveries
Start the adventure
A hand-illustrated journey into a galaxy of imagination, where dinosaurs drift through space, strange creatures become friends, and courage is discovered in the unknown. The Cosmosaurs & The Lost Child is a story brought to life by artists and storytellers, crafted to be seen, felt, and passed from one hungry mind to another.
A futuristic 
Adventures that spark imagination
Stories of Friendship & Belonging
Hand-Illustrated edition
A story about belonging, courage, and finding your place among the stars
$79.00The Cosmosaurs & The Lost Child is an epic 250-page space adventure created by artist and animator Benjamin Hayte. Through the thrilling story of the Dinosaur Rangers, this book celebrates the importance of friendship, courage, and kindness.
• A thrilling galaxy-spanning adventure filled with action, mystery, and discovery
• Imaginative worlds, ancient powers, and unforgettable characters
• Expanded 250-page story for readers who want to dive deeper into the Cosmosaurs universe
• Richly illustrated throughout with hand-crafted artwork
• Perfect for young readers who love science fiction, fantasy, and big adventures
NO stock illustrations
NO AI-generated artwork
JUST original storytelling, imaginative worldbuilding, and epic space adventures!
What type of book is it?
An illustrated action-packed middle grade adventure novel perfect for ages 7-12
Will this appeal to both reluctant and advanced readers?
Yes. It’s designed to be engaging for reluctant readers through strong visuals, while still offering depth and world-building for confident readers.
Can this book be read aloud as a bedtime or shared story?
Yes. It works both as an independent read and as a shared read-aloud experience, especially for younger readers in the range.
Is it just entertainment or more?
More than a space adventure, it's a story about friendship, found family, courage, and discovering where you belong.
What are the dimensions?
Size: 26x27 cm - 250 pages
Sam is used to being the new kid-quiet, careful, and never too hopeful. Fifi is the opposite: loud, curious.
When Sam makes an impossible wish, a mysterious signal reaches the farthest corners of the galaxy. Now four dinosaur Space Rangers must follow the clues, face the unknown, and uncover a secret bigger than anyone imagined.
The universe is bigger, and far stranger than Sam ever imagined. Space isn’t empty... it’s alive with strange rules, living machines, and impossible worlds. In the Cosmosaurs universe, every discovery opens the door to something even bigger.
Big courage. Small patience.
Young, eager, and always scanning for what’s next. Bryo wants to prove he belongs among the galaxy’s best.
Mission first. Unless someone needs saving.
Rexor is discipline in armor. Every mission runs through him. But when a kid is in danger, rules can bend.
Hard shell. Soft core. Loud loyalty.
Torrin is a walking tank with a loyal heart. Hot-headed, fearless, and built for the moment something explodes.
The heart of the crew.
Trina is the calm in the chaos. When emotions start moving planets out of place she keeps the team steady.
Venture beyond the known and into a universe brimming with wonder. Sail alongside cosmic pirates, seek guidance from mysterious oracles, outsmart notorious villains, and uncover extraordinary worlds. Wherever the journey takes you, adventure is never far away.
