The Hollow World (en Inglés) - Chris Cathey

A planet opened.
It wasn't an accident.

Quade was dismissed, discredited, and quietly erased from the scientific community for a theory no one took seriously-that some worlds aren't just environments, but living systems.

Then Astraea began to change.

From orbit, the planet's surface folds inward in a precise, spiraling formation-revealing a vast interior world lit from within. The data makes no sense. The physics shouldn't work. But one thing is clear:

Quade was right.

Recruited back under strict conditions, he joins a mission to descend into the hollow world and uncover the truth. What they find isn't just a new ecosystem-it's something structured, responsive, and impossibly old. The environment shifts in subtle ways. Pathways change. Systems react.

It isn't random.

It's watching.

As the team pushes deeper, a single mistake triggers a response that changes everything. The planet begins to withdraw. Access narrows. Movement is no longer neutral.

What they thought was exploration may already be something else.

Communication.

Caught between institutional pressure to exploit the discovery and the growing realization that Astraea may be alive, Quade must confront a question no one is prepared to answer:

If a world can think...
how do you speak to it?

The Hollow World is a cerebral science fiction novel about discovery, perception, and the limits of human understanding-where the greatest danger isn't the unknown, but assuming it can be controlled.