GRAPHIC NOVELS · REAL ASTRONOMY

Enter the story.
Explore the real universe.

Begin LEONIUS: Throne of the Stars with Zyphoria and Noctureon. Meet extraordinary worlds, then follow your questions into real astronomy.

Two published stories to begin with. Free samples of Books 1–3. No signup required.

Galaxius, the luminous protector of fictional Zyphoria
Galaxius · Zyphoria: Rise of Galaxius

YOUR READING JOURNEY STARTS HERE

Begin with Book 1. Follow the story into Book 2.

Noctureon: Glow of Darkness cover

BOOK 2 · PUBLISHED

Noctureon: Glow of Darkness

Follow the conflict into a realm sustained by stolen light.

$24.97 USD · Physical book

Explore NoctureonRead the sample

Shipping and tax, where applicable, are additional. Confirm the final total and delivery details before payment.

Explore the Cosmic Almanac companion book

FOR PARENTS, CAREGIVERS & EDUCATORS

Turn a story into a question worth exploring.

Start with the free LEONIS: The Sky Awaits astronomy guide. Explore the stars of Leo, try a model and distinguish fictional worlds from observed science.

Explore Free Learning ResourcesOpen The Sky Awaits

BEYOND THE PAGE

A growing saga. A real sky to explore.

LEONIUS is envisioned as a 40-book saga. Discover its characters and imagined worlds, or explore the real constellation that inspires the questions.

Explore the UniverseExplore Real Astronomy
The luminous imagined landscape of Zyphoria
From the streets of Brooklyn to worlds beyond the stars.

DARNELL McCULLOUGH / CREATOR

A Mission from the Creator.

I’m Darnell, a father born, raised, and educated in Brooklyn, New York. I know the beauty, energy, and possibility of our neighborhoods. I also know how easily a child’s world can shrink to the blocks around them, especially when city lights hide the stars overhead.

I built LEONIS Universe to open that view. A story can invite a young reader into an unfamiliar world. A question about its oceans, stars, or gravity can send that same reader toward real science.

My life’s mission is to engage, educate, and empower three billion people by 2084. That is an ambitious destination, but the work begins with one reader, one classroom, and one moment of curiosity.

I want children to look beyond the concrete bubble and recognize that discovery belongs to them, too. Thank you for helping me put stories in their hands and a larger universe within their reach. Together, we begin.

— Darnell

STAY CURIOUS

The next chapter, in your inbox.

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IN DEVELOPMENT

Follow what comes next.

Trine, future bundles and collectibles are not open for purchase. Release dates and final details have not been announced.

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