Ellie's POV This had to be a joke. 'How could Emily be the third mer-descendant?' I paced my room from end to end, trying to wrap my head around it. My every step-sister, the very origin of my ruined life, was the third person I needed to accomplish a mission so dear. I was beginning to think this was all a setup to bring me to my knees, or maybe sabotage the plan. 'Was there even a plan?' What if this was all just for my damnation, and I was foolishly teaming up with my enemies to destroy me? I had made up my mind to trust Kate, but this recent development was not very easy to trust. Even if I wanted to believe that all of these were true, that I needed all three mer-descendants, how could I be sure that Emily was the third? I had known Emily for most of my life and she

