The Sword of Summer (Magnus Chase and the Gods of Asgard, #1)

by Rick Riordan

“Correct me if I’m wrong. I’d love to be wrong. Ages ago, Loki had an affair with a giantess. They had three monstrous kids.” “I was not one of them,” Sam muttered. “I’ve heard all the jokes.” Hearthstone winced, like he’d been wondering about that.