Thor #163

In "Where Dwell the Demons!", Thor ventures into the heart of a mysterious crisis on Earth when his companion Sif vanishes during a mission. What he discovers at a compromised atomic research facility is far from ordinary—mutated beings have infiltrated the site, and the truth may be more terrifying than any storm. With the arrival of Pluto, the Roman god of Death, the stakes rise beyond mortal understanding. Written by Stan Lee and brought to life by Jack Kirby’s dynamic art and Vince Colletta’s inks, this 1969 classic features a cover by Kirby and Colletta that captures the cosmic dread of the tale.