Second Star to the Right (A Once Upon A Time fanfic)

Layla was just a normal girl in the humble city of San Francisco. One evening, a sleepover goes awry, and Layla ends up in Neverland without her wingwoman and best friend, Crystal. In order to get even with the mysterious Peter Pan, Layla must somehow bring Crystal to Neverland. When she finally does get Crystal to Neverland, they find out that they are both MERMAIDS! They both know that they can use their magic to their advantage.. But How? In a twisted turn of events, Laya's sister Kailin gets kidnapped by Pan himself and held hostage at his camp briefly, before being teleported to the Echo caves. With all of the drama and crazyness going on, nobody noticed a dark force moving in slowly but steadily to get revenge on an unlikely suspect and destroy the entire island. As conditions become worse, Pan and Layla must team up to defeat this evil. Too bad it's too late....