The Water Demon

Summary: The Water Demon drowns it's victims from the inside by possessing their bodies, it lives in a lake a lake that the sister's used to go to when they were little to a camp. Lake Skylark is a place where children went to camp, during the 1970's a lot of children were killed there, The Charmed Ones mother "Patty" was also killed there by the Water Demon, Patty and her whitelighter Sam had a plan to kill the demon but when Sam tried to stop her and told her to stay away from the lake distracting her, she froze Sam and the demon attacked Patty and drowned her from the inside. Neither Sam nor anyone else was able to save her. Years later the sister's are back at Lake Skylark after someone dies there, they go to see their old camp leader to find out what happened there, she tells them about Sam who lives in a shed there but keeps himself to himself. The Demon manages to strike again this time killing the camp leader. The sister's team up with Sam to kill the Demon using Patty's plan which was to use the electricity clamps on the side of the lake. Prue is the one who they decide to vanquish the demon but instead Sam jumps in front of her and the demon consumes Sam, he then takes the electricity clamps and electrocutes himself so that the demon can be killed. Unfortunately Sam is also killed and we see his ghost walk away with Patty. The camp becomes safe once again now the Water Demon is gone.