Magnus Chase and the Hammer of Thor by Rick Riordan

Winner of the 2017 Stonewall Book Award for Children's and Young Adult Literature, Magnus Chase and the Hammer of Thor marks Rick Riordan’s return to the world of Asgard. Picking up right after their triumph at the end of the previous story, Magnus Chase and company must now retrieve Thor’s hammer, Mjolnir, before the giants invade and destroy Earth. So overall, just your average day really.