Then she let him go, and then persuaded him to side with her by promising to help him enact his revenge herself. Regina enchanted Hook's hook so that he could rip out Cora's heart and then sent him through the hat portal to Wonderland. Their plan went awry, because Cora doesn't keep her heart in her chest (clever!). Instead, she grabbed Hook's heart, and therefore was able to learn about Regina's plans. Then she let him go, and persuaded him to side with her by promising to help him enact his revenge herself.
Did you see this coming?
Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.