The Haunted Man
Gerry Finley-Day (writer), John Cooper (artist)
Published in Battle Picture Weekly & Valiant #121-124, June 25 - July 16 1977 with 14 black & white pages.
While in France Gaunt is tortured by a German Gestapo Officer and left for dead. But he survives and gets nightmares. This make him seek revenge on the person that did him ill.