Marvel Fact Files #55 Mystique Cover

"The Marvel Comics Fact Files is a weekly publication that builds up to create a fantastic in-depth guide to the Marvel Universe, packed with information on all the heroes and villains, their weapons, vehicles and technology. Every issue features original cutaway artwork that reveals hidden secrets, detailed profiles of characters, a history of the teams, and a timeline of Marvel's greatest battles, plus inside information about the history of Marvel Comics. "