"It's one of the most influential western fantasy works on my world in my reality," Cassie answered cheerfully. "Mom and I used to take turns reading it aloud when she took me on digs. She always said it was meant to be heard more than read."

She twisted around in her seated position to wave Hiccup over.

"This is the reality where the Nazgûl are from," she explained to him, before turning back to Goliath, "Kuk snagged some of the bad guys from this book -- well, technically it's a series -- and brought them here.