Magnus Chase and the Gods of Asgard, Book One: The Sword of Summer (Rick Riordan's Norse Mythology) - Christopher Guetig, Rick Riordan

Oh course Davy Crockett made it to Valhalla. He does seem more on the Norse spectrum than the others, with the rustic living and the fur. 

 

FYI he's one of my all time heroes. I'm from Tennessee and Davy Crockett is sort of a legend to us.