9 From The Nine Worlds (Magnus Chase And The Gods of Asgard) by Riordan, Rick

An all-new collection of short stories from the world of Magnus Chase! How well do you know the nine Norse realms? Do you get all those heims mixed up? Well, this collection of rollicking short stories - each set in a different world and told by a different character from the Magnus Chase and the Gods of Asgard series - will help straighten you out. And even if it doesn't, you'll enjoy reading about how Alex saves Amir's pants, Samirah plucks a giant's harp, Mallory teaches a dragon how to throw down insults, and much more. Just watch out for Thor, who is running through the whole thing and raising quite a stink . . .