Venom

One day, when the user was walking through the woods, they fell down the side of a hill and plunged into water. the cold water surounds them and they cant move as they sink to the bottom. they wake up long enough to feel thick water rush into their throat. they claw their way up to the surface and crawl onto the land. they throw up black sludge and panick a little. "Do not worry.." A deep voice in their head grunted.