Raven Squad: Darkness (Paperback) (ISBN-13: 9798186876755)

Raven Squad has evolved from desperate survivors into a unified pack based out of an Icelandic sanctuary. However, their hard-won peace is shattered by the arrival of a massive invasion fleet intent on destroying them.

To protect their home and allies, Ren, Bonny, and the squad must execute a mission. This sparks a brutal, multi-front war across the freezing Atlantic. As the conflict deepens, the Ravens uncover a terrifying truth: the Gloom has evolved again.