Challenge of the Ghost Riders: Part 2 - Written by Jason Aaron. Art by Stefano Caselli. Cover by Russell Dauterman with Mike McKone. AVENGERS MOUNTAIN: POSSESSED as CHALLENGE OF THE GHOST RIDERS continues! It's Ghost Rider vs. Ghost Rider in a wild race through hell, while the Avengers have to fight for their lives against their own Celestial headquarters, which is now possessed by a rather shocking, rather murderous hell-damned soul! 28 pages, full color. Rated T+ Cover price $3.99.