The X-Men 1963 #42 - 7.0 - $30.00

Grotesk, still seeking his revenge against humanity, looks for a device to accomplish this task - the oscillotron. Professor X attempts to stop Grotesk single-handedly, but fails; Grotesk turns on the device, but the X-Men arrive in time to help destroy the machine before it can cause a massive earthquake. In the aftermath of the battle, Professor X apparently dies.

The Living Diamond is blasted into atoms in his attempt to destroy Professor X and Scott Summers. Afterward, Prof. X asks Scott to be the first member of his fledgling group whose goal is to create trust between humans and mutants.

On-sale date from 1968 Periodicals, Copyright Office, Library of Congress.

• The Death of Professor X - Iceman figure likely redrawn by John Verpoorten. The unaltered cover was published in X-Men # 90. Info per Nick Caputo, June 2012.
• - Inside front cover. Ad for skin cream.
• Statement of Ownership - Total No. Copies Printed (net press run): Average no. copies each issue during preceding 12 months: 445,763. This is located after page 4 of the "If I Should Die...!" feature.
• The End...Or the Beginning? - Scott is given a costume that includes a ruby quartz visor to help control his optic blasts.
• - Includes Stan's Soapbox, "The Mighty Marvel Checklist" and "Let's meet 26 more M.M.M.S. members!"
• - Letters from: Jeffrey Taylor, Eddie Newman, Roberta Myers, Alan Groginsky, Mike Mindala, Royal Balloon, and Robert Bentchick.
• - Ad for toy soldiers.
• - Inside back cover. Ad for a variety of novelty items.
• - Back cover. Ad for the Famous Artists School.