In 1958, the High Evolutionary's evolved and armored animal elite forced the Elder God Chthon back to his prison within Mount Wundagore! More than forty years later, Captain America, Iron Man, Ms. Marvel and their teammates face the same challenge, only for Chthon to find his greatest power in the Avengers' own ranks! It's demonic, it's devastating, it's a daunting dilemma only Earth's Mightiest Heroes can handle!
Plus: the Absorbing Man in action, the origin of Quicksilver and the Scarlet Witch, and cameos from the history of the dreaded document dubbed the Darkhold! Collecting Avengers #181 to 187, written by David Michelinie, Mark Gruenwald and Steven Grant, with art by John Byrne, Gene Day and Klaus Janson; features a cover by Byrne.
Marvel, paperback, 136 pages, published February 2009