The Keeper of Chelsith
Far beneath waters heavy with memory, Chelsith endures. Its halls were not built for the careless, nor were its guardians placed there for ornament. Among them stands the Keeper of Chelsith, a sentinel bound to secrets that should have remained below the tide. The Keeper does not rage like a beast. It endures like stone. It waits like the deep sea.
Those who have faced the Keeper speak of a battle that feels less like an assault and more like a trial. Ancient protections answer its call. Servants rise to shield their master. The chamber itself seems to hold its breath as adventurers test their strength against a guardian designed not merely to kill, but to prevent passage. Every wound dealt to the Keeper is a question. Every survivor is an answer.