The night before Sonja's coming-of-age ceremony, she receives a visit from a mysterious boy who offers to take her across the stars to his home. Traveling on the northern lights, Sonja follows Espen to a Norway unlike any she knows, one full of trolls, pirates, and magic. As she slowly starts to lose her heart to this new land, she uncovers an adventure that might bring both of her worlds together.

This volume includes Nordlys: The Valley of the Trolls and Nordlys: The Vikings and the Oracle, originally published in Norwegian.