Published Aug 1973 by Marvel.
First appearance of Nightshade in "Queen of the Werewolves" Plot by Steve Englehart and Alan Weiss. Script by Steve Englehart. Art by Alan Weiss (with touch-ups by John Romita Sr.). Cover by John Romita Sr. On their way back to New York, the Sentinel of Liberty and the Falcon stop at Grimrock Prison in Maryland to check on Sam Wilson's friend who is serving time there. And unfortunately, the duo is completely unaware of the horror that awaits them inside. Cap enters the facility from the rear and is immediately attacked by werewolves! The star-spangled avenger ferociously fends off the wolf pack and then meets their master: Nightshade! She initially seems harmless -- almost childlike -- but Nightshade enjoys turning people into werewolves...including Sam Wilson! Oh no, will Captain America have to fight the new Falcon-Wolf? Yes, he will. Just like Nightshade planned! Cameo appearances by Nick Fury and the Yellow Claw.