The Intelligent Dungeon

Erin had forgotten everything. Well, that’s not exactly right. He had forgotten who he was — the person or entity — that he used to be. He still remembered things, though; objects, places, holidays…. He remembered pencils, doctors, and feeding the ducks on Tuesdays. But through all of his scattered memories, his discombobulated visions of a past forgotten — Erin awoke to something extraordinarily unfamiliar. Erin awoke as a gemstone; he was violet and small. He found himself in a dimly lit cavern, underground and discarded. He heard waves crash beyond him; an ocean near. Erin tried to breathe, blink, move; he tried to live, but against his better expectations — he had no lungs to breathe, no eyes to blink, and no limbs to move. Waves continued to crash beyond him and when Erin least expected it — something clicked. The tides of mana around responded to his call. Although fictitious, mana acted on Erin’s behalf; it became his lungs, his eyes, and his limbs. When Erin awoke, he didn’t remember much. Luckily, the things he did remember — he could recreate. There‘s only one problem; the ocean beyond — a galleon shipwrecked — adventurer’s disembarked — a dungeon discovered. They found Erin. What happens next?