One boy. A secret world of steam. And a summer that’s about to hit absolute zero.

Twelve-year-old Carter thought the biggest challenge of his summer would be surviving the sweltering heat of Oak Street. That changes the moment his bathtub turns into a bubbling portal and a frantic, rock-skinned goblin named Grag climbs out of the drain.

Deep beneath the suburban lawns and school hallways lies the Kinetic Core, a wondrous realm where geothermal goblins harness the Earth’s heat to keep the world turning. But a mysterious and chilling force the Cold-Blight has begun to siphon away the planet’s warmth. From the shimmering Crystal Caves to the high-speed Obsidian Rapids, the “Sizzle” is fading, and Carter is the only “Up-Top” human with the courage to help.

Armed with nothing but his explorer’s kit, a heavy-duty crowbar, and a knack for scientific logic, Carter must join forces with his new underground friends to stop the Kinetic King. If they fail, the goblins will be frozen in time, and Carter’s home will be trapped in a permanent ice age.

The Geothermal Goblins is a high-stakes adventure that blends the wonder of geology with the power of friendship. It’s a journey that proves even the “messiest” parts of life are worth more than a world of perfect, frozen stillness.