the girls that lived in the water

chapter 1

Every day after school and on the weekends a girl goes swimming in the ocean but one time she went swimming with her friend and they both felt a tingling in there legs after a few minutes they looked down and they had a tail each ,both the girls were terrified they started swimming to this island and they found this entrance under the water to a pool both the girls got out of the pool and sat there for 5 minutes and they got dry they found out they had powers one of them could freeze things and the other could heat things . The girls were terrified of what was going on what will they do about it.  the girls went home thinking what they were going to do about this