Thor #153

In "But Dr. Blake Can Die!", Thor’s absence of his hammer leaves him vulnerable as Loki steals Mjolnir and flees to Midgard, forcing Thor and Sif into a desperate pursuit. Without his godly power, Thor reverts to human form as Don Blake, and when Sif is gravely injured, Blake must take on the life-or-death task of saving her in the operating room. Written by Stan Lee and brought to life with dynamic energy by Jack Kirby, with inks by Vince Colletta and letters by Artie Simek, this 1968 issue features Kirby’s bold cover art in both pencils and inks, capturing the stakes with raw intensity.