
Water that reaches the caldera's floor is heated by magma and turned into steam, creating a tropical environment. Water seeps through cracks in the earth's crust to form waterfalls and collects in pools on coral shelves. This subterranean world is filled with bioluminescent fungi, coral, and bright, scintillating crystals that adorn the vast cavernous spaces and antechambers. The Hidden World is set within a massive volcanic caldera, which serves as a portal to an endless maze of chambers and volcanic tubes that wind their way around the world. The caldera entrance to the Hidden World in the sea of the Barbaric Archipelago. But it's still a place for dragons and not for humans. We wanted it to be an exotic world that still feels like it belongs here on earth. Part of that was delving into bioluminescence and was of channeling light into this subterranean space with the use of crystals that could carry light from magma. We wanted something that transcended the idea of a cave.

This island still holds too many secrets. Those who have returned reported sightings of a great waterfall and dragons guarding the entrance to a hidden world beneath the sea. The Hidden World is an old sea-faring legend about a land at the edge of the world, where many sailors have lost their ships - never to be seen again.

