Odd and the Frost Giants by Neil Gaiman - illustrated by Brett Helquist (2009) HarperCollins 

The story of a boy in the days of the Vikings whose father is away on a raid.  He tries to go to the woods with his father’s axe and cut down a tree.  But the axe is too big for him and when the tree is felled, he cannot get out of the way fast enough and his leg is shattered, rendering him not useful to his neighbors.  His mother is from Scotland and was taken by his father in a raid because she was so beautiful.  He did not even approach her about marriage until he taught her enough of his own language to ask her.  But he died on a later raid, saving a packhorse who had swept overboard.  When he returned, the cold and wet had gone into his lungs and he died.

His mother married another man who did not like his new stepson.  So one day, Odd took a salmon and set out to find his father’s wood cutting hut.  He has to use a staff as a crutch because of his leg, but he makes it to the hut, or just in front of it, where he sees a fox who clearly wants him to follow.  So he does and comes upon a scene with an eagle sitting on top of a tree and a bear stuck between two trees with it’s arm buried in a honeycomb.  Odd takes his axe and cuts down the tree behind the bear to free him, hoping the bear won’t eat him.  Instead, the bear, the fox and the eagle follow him home.

In the night he hears voices in a discussion and gets up and accuses the animals of talking.  They finally let him know that they are really Odin, Thor and Loki and have been banished from Asgard by a Frost Giant.  Odd agrees to go with them to get rid of the Giant.