Magnus Chase and the Gods of Asgard is an upcoming trilogy about Norse mythology by American author Rick Riordan. The first book is scheduled to be released on October 6, 2015. Development Riordan announced the book series on his webcast on "Mount Olympus" (The Empire State Building) on September 23, 2014. Setting The series will take place in Boston. Books The Sword of Summer The name of the first book is The Sword of Summer. It will be released on October 6, 2015. The name of the main character is Magnus Chase. It is said to be similar to Riordans' other books and will include Norse deities such as Odin, Loki, and Thor.