Thor (1966) #425
Thor, Hercules, and Eric Masterson return from the Black Galaxy, only to find two ancient enemies of Asgard locked in combat - Surtur of the Flame, and Ymir of the Frost!
Stories
letterer
Michael Heisler
colorist
George Roussos
writer
Ron Frenz
writer
Tom Defalco
letterer
Vc Chris Eliopoulos
Cover Information
cover artist
Al Milgrom
cover artist
Danilo Bulanadi