For twenty-five thousand years, the Templenoe Icecap Sanctuary has stood inviolable. Deep within its compressed, ancient indigo walls, the Bubblonian people live in perfect communal harmony, their minds beautifully woven together through a shared collective consciousness known as The Great Floating.

But now, the sanctuary is groaning.

The ice is not just melting; it is tearing apart from within, driven by a terrifying, alien acceleration. Nessa Odran, a chosen sentinel gifted with profound psychic stillness, is the first to feel it—a vast, predatory darkness pressing against the edges of her people's minds. The Sluagh-Gorm has awakened: a cosmic psychic predation that feeds on collective consciousness and despair.

As the pathways collapse and water rapidly floods their home, the unified council fractures. One faction defects to the higher peaks, stealing precious resources and spreading a fanatical "hunger-faith". The remaining survivors are left with only one desperate choice: map a perilous path to the legendary Heart Stone—an ancient beacon capable of carving an escape route to the surface.

But salvation demands a brutal arithmetic. To ignite the beacon, a Thaidhg elder must perform a permanent memory-sacrifice, erasing blocks of the collective past forever. To save their future, the Bubblonians must willingly choose to forget who they are.