Penguin Random House Children's UK Invaders (Brotherband Book 2)

The Invaders is the second book in the Brotherband series, from the author of the internationally bestselling Ranger's Apprentice. Enter a world of wolfships, epic battles and treachery in the cold northern seas. Enter the world of Brotherband. Hal and the Heron brotherband are on the trail of Zavac and his precious cargo. Will they be able to find the pirates when the weather clears? And when they do, how can they possibly beat the mighty Raven and its crew of vicious cut-throats and killers?