The Mortal Thor (The Mortal Thor #6)

IN THE COILS OF THE COBRA! The man called Thor is only a man... the Cobra is something else. And he's not alone. Donald Blake has sent four of Roxxon's deadliest assassins after Sigurd Jarlson, and they won't stop until he quits... or he dies. Somewhere in the city, a man with a hammer has a choice to make...