Hellboy: The Bones of Giants (Hellboy: The Bones of Giants #4)

Hellboy and the others make their way to the ghost city of Utgard in search of Thrym. But there's more than one giant standing between the B.P.R.D. and saving the world. Dwarves, Valkyries, and the Norse god of Thunder himself come together for the ultimate confrontation to close out this stunner of a series!