Their love was meant to be. When Megan Rosenberg moves to Ireland, everything in her life seems to fall into place. After growing up in America, she's surprised to find herself feeling at home in her new school. She connects with a group of friends, and she is instantly drawn to darkly handsome Adam DeRÍs. But Megan is about to discover that her feelings for Adam are tied to a fate that was sealed long ago—and that the passion and power that brought them together could be their ultimate destruction.

Their love could destroy them all. Through the ages, Marked Ones have harnessed the powers of the four elements: Water, Fire, Earth, and Air. Much about the elements is shrouded in mystery, but one thing is certain: A relationship between two Marked Ones has the potential to cause widespread devastation. Megan and Adam—Air and Water—are determined to defy the risks. But the power that swirls inside Megan is growing in twisted ways. And the closer she is to Adam, the closer Megan comes to unleashing a dark force that could spell destruction for the entire Marked line.