23.5° Diary of a Catastrophic Flood
Earth's Deep History, Planetary Science, and the Origins of a Habitable World
What if the story of Earth is far more dramatic than we ever imagined? Step deep into the violent, extraordinary forces—cosmic collisions, planetary upheaval, and vast catastrophic flooding events—that forged a hostile sphere into a living world.

“What if everything you thought you knew about our planet deserved a second look? This engaging and accessible book invites readers to explore big questions about our home's origin through a structured and logical lens. Both fascinating and easy to understand...”
A Story of Planetary Survival
Blending geology, planetary science, and climate history to explore why Earth became habitable when so many others did not.
Deep Time & Origins
Uncovers the violent cosmic collisions, planetary upheaval, and atmospheric shifts that laid the foundation for life.
Catastrophic Geology
Examines vast global flood processes and transformative planetary forces beyond textbook explanations.
Story-Driven Science
Complex scientific concepts made accessible for enthusiasts of popular science, geology, astronomy, and deep earth history.
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Castell Publishing
Independent non-fiction book publishing and physical distribution.
P.O. Box 185
Melton, VIC 3337
Australia
Monday – Friday: 9:00 AM – 5:00 PM AEST