Hotel Valhalla: Guide to the Norse Worlds (also known as For Magnus Chase: Hotel Valhalla Guide to the Norse Worlds) is a collection of short stories about Norse mythology. The book is a supplementary work in the Magnus Chase and the Gods of Asgard series, written by Rick Riordan. It was released on August 16, 2016 and was published in United States by Disney Hyperion, in United Kingdom by Puffin Books and was also translated into five languages to date.Hotel Valhalla features characters from Norse mythology, including Norse gods, who narrate their stories in a humorous retelling. The book was praised for its humour and writing style, but criticized for its lack of illustrations. Source: Wikipedia (en)