H2O Just Add Water (OCxMermaid!Reader) Season 1
Leah (you) was a loner until she meet Cleo Emma and Rikki they where on Zane's boat Rikki stole well kinda but they got stuck on a island no way out the Island was called Mako they decided to explore more up the mountain so emma could get service to call for help until they went into a cave that looked like a volcano...