"Volcano Makers"
*Magnus and Leeja help President Claiburne investigate a series of seemingly natural disasters by causing volcanic eruptions near scientific facilities. Magnus discovers that a mystery villain has been instigating these disasters. Magnus and Leeja are taken captive by Zen Arbor, a deranged scientist. Magnus escapes, but how to rescue Leeja and stop the mad Doctor? *Source: Warlock
Story written by Russ Manning and Don Christensen, penciled by Russ Manning and inked by Mike Royer; 24 pages.
Cover painting by George Wilson
Reprinted in Magnus, Robot Fighter (1963) #38