The books are professionally translated into English, German, Spanish, Italian, and Portuguese. The automatic website translation widget isn't always as accurate as I'd like. Thank you for your patience.
Acasta - Earth History for Children
5 trilogies • Ages 4–9 • Available in 5 languages
What if a tiny pebble had been there since the very beginning of time?
In this calming bedtime story series, siblings Ayla and her little brother Silas meet Acasta, an ancient pebble who has witnessed 4.03 billion years of Earth's history. Each book gently carries the children into a different eon - beginning in the Hadean, when Earth was young and fiery, moving into the Archean, when the first oceans formed and life quietly began, through the Proterozoic, when oxygen filled the air and the sky learned how to turn blue, and finally reaching the Quaternary, when Earth came to resemble the world we know today more and more.
Told in a warm, soothing voice, these stories blend accurate Earth science with child-friendly storytelling. Young readers are introduced to real scientific ideas such as the formation of the planet, early oceans, microorganisms, oxygen, multicellular life, and the Ediacaran world, all explained in a gentle and reassuring way. Each book includes a glossary to support children, parents, and educators.
Perfect for bedtime reading, shared family moments, classrooms, and curious young minds, this box set invites children to explore the deep history of our planet with wonder, calm, and imagination—one quiet story at a time.
Recommended age: 4–9 years
Trilogy 1 - Books 1-3
What if a tiny pebble could remember the very beginning of Earth?
Join Acasta, a softly glowing pebble, as he guides Ayla and Silas through the earliest chapters of our planet's incredible story—from a fiery young Earth to the first oceans, the beginnings of life, and the rise of oxygen in our atmosphere.
Written especially for children ages 4–9, these gentle bedtime stories explain real science in a calm, simple, and engaging way, making big ideas easy to understand while inspiring curiosity about the natural world.
Book 1: The Hadean Eon
Discover a young Earth that was hot, wild, and still taking shape.
Book 2: The Archean Eon
Explore the first oceans and meet the tiny living organisms that began Earth's long story of life.
Book 3: The Proterozoic Eon
See how oxygen transformed our planet and allowed life to become more complex.
Trilogy 2 • Books 4–6
What if a tiny pebble could remember how life discovered the world?
Join Acasta, a softly glowing pebble, as he guides Ayla and Silas through ancient seas filled with extraordinary creatures, follows the first plants onto land, and watches the earliest animals begin to explore a brand-new world.
Written especially for children ages 4–9, these gentle bedtime stories explain real science in a calm, simple, and engaging way, making big ideas easy to understand while inspiring curiosity about the natural world.
Book 4: The Cambrian Period
Discover an explosion of incredible sea creatures as life rapidly diversifies beneath the oceans.
Book 5: The Ordovician Period
Explore thriving marine life and witness the first simple plants begin to appear on land.
Book 6: The Silurian Period
See plants spread across the land as the first animals venture out of the water.
Trilogy 3 • Books 7–9
What if a tiny pebble could remember the first forests, giant insects, and a single great continent?
Join Acasta, a softly glowing pebble, as he guides Ayla and Silas through Earth's first great forests, ancient swampy landscapes, and the vast supercontinent of Pangaea, where life continued to evolve in remarkable ways.
Written especially for children ages 4–9, these gentle bedtime stories explain real science in a calm, simple, and engaging way, making big ideas easy to understand while inspiring curiosity about the natural world.
Book 7: The Devonian Period
Discover the first great forests as plants flourish and early animals begin exploring life on land.
Book 8: The Carboniferous Period
Explore warm, swampy forests where giant insects thrive and the first reptiles lay their eggs on land.
Book 9: The Permian Period
See the supercontinent of Pangaea take shape as deserts spread and life prepares for its next great change.
Trilogy 4 • Books 10–12
What if a tiny pebble could remember the age of dinosaurs?
Join Acasta, a softly glowing pebble, as he guides Ayla and Silas from the first dinosaurs to their rise across lush prehistoric landscapes, ending with the asteroid impact that changed life on Earth forever.
Written especially for children ages 4–9, these gentle bedtime stories explain real science in a calm, simple, and engaging way, making big ideas easy to understand while inspiring curiosity about the natural world.
Book 10: The Triassic Period
Discover how life recovered after a great extinction as the first dinosaurs and early mammals appeared.
Book 11: The Jurassic Period
Explore a world of giant dinosaurs, towering forests, and flying reptiles soaring through warm skies.
Book 12: The Cretaceous Period
See flowering plants spread across the land as dinosaurs reached their greatest diversity before a giant asteroid changed Earth forever.
Trilogy 5 • Books 13–15
What if a tiny pebble could remember the rise of mammals and the first humans?
Join Acasta, a softly glowing pebble, as he guides Ayla and Silas through ancient forests, wide grasslands, and icy landscapes, witnessing the rise of mammals, the evolution of modern animals, and the appearance of the first humans.
Written especially for children ages 4–9, these gentle bedtime stories explain real science in a calm, simple, and engaging way, making big ideas easy to understand while inspiring curiosity about the natural world.
Book 13: The Paleogene Period
Discover how mammals and birds flourished as life recovered after the extinction of the dinosaurs.
Book 14: The Neogene Period
Explore expanding grasslands where many familiar animals evolved as Earth's climate grew cooler.
Book 15: The Quaternary Period
See ice ages shape our planet as great animals roamed the land and the first humans appeared.
Acasta Coloring Book – Color the World of Earth History
Bring the world of Acasta to life in your own colors! This coloring book features the same illustrations from the Acasta Earth History picture books, transformed into black-and-white coloring pages for children to color themselves.
A fun way for young readers to revisit Acasta’s journey through Earth’s history while enjoying a creative activity inspired by the stories.
Available in English, German, Spanish, Italian, and Portuguese. Softcover edition.
