Eighty years! Eighty creators! An army of legendary creators! All in one sensational hardcover! In celebration of Marvel's 80th anniversary, the greatest array of talent ever to be assembled between two covers! Names from the past, from the present and even the future! Every page is filled with all-new work from this cavalcade of comic book luminaries! A mystery threads throughout the Marvel Universe - one that began in MARVEL COMICS #1 and unites a disparate array of heroes and villains throughout the decades! What is the Eternity Mask? And who is responsible for the conspiracy to keep it hidden?