*It’s Thunderbolt vs. Thunderbolt in “Widowmaker” part 2 of 4! Black Widow II leads the hunt for renegade ex-team-member Songbird, but one of her own squad of blood-thirsty killers is carrying a deadly secret! Who holds the secret, what is it, and how will it explode the delicate balance of power within Norman Osborn's black-ops hit squad forever? There's no going back after the latest chapter in the book that IGN.com calls “the vilest, most wicked book on the stands!” *Source: marvel.com