Marvel's Thor: Dueling with Giants — Keith R.A. Decandido

One of the greatest heroes from Marvel―and myth―returns as Thor battles the mightiest of the giants in a fight to the death. The first book of an action-packed trilogy from Joe Books, Dueling with Giants is a story of epic combat from start to finish, sure to entertain fans of Marvel comics and adventure novels alike.

During just another day for the God of Thunder, Thor is defending Asgard against invading trolls when the unthinkable happens―his hammer Mjolnir loses its enchantment. Thor is still more than a match for his enemies, and after vanquishing them he learns the secret to his sudden weakness. Mjolnir was switched without him knowing, and only one being would be cunning enough to carry out such a trick: Loki.