Fourteen-year-old Aiden Callahan has been expelled and shipped off to rural County Sligo for the summer. He expects boredom. Instead he finds ancient passage tombs and a mysterious boy named Cianán who seems to belong to the landscape itself.
As their bond deepens into first love, Aiden discovers that Cianán may be the last living remnant of the Tuatha Dé Danann, the mythic race who once ruled Ireland and retreated into the ancient mounds. But summer doesn’t last forever, and some connections come with a cost neither boy is prepared to pay.