A Team sent 2 of their members to explore a cave in the deep below......
They found something.
A Shrine. While making their way out, The Crew in the Submarine had took a piece of the shrine
Then, Something happened....... The Mini-Submarine was destroyed, on it's way back to the surface and the team's ship was destroy. Only 3 of the crew had survived and all they know of the thing is that it Looked like a bird-like creature.