Dweller of the Cave

Based on Dweller of the Cave, 1994, by Teressa Jennings.

When 16 year old Blaine Bythesea moves back his old school district, he expects a brand new life. But when he finds out about Murderkill Park not far away from him, he decides to explore. While crossing a bridge with his new friend, the wood breaks, plunging him into the water below. He wished for a new life, and one he got. One with a "monster" and a supernatural ability that takes his wish a little too literally. And at the cost of another that could be forgotten forever.

Now posting to Royal Road