Defenders (1972 1st Series) #124
"Darkness on the Edge of Time!" Written by J.M. DeMatteis. Art by Don Perlin and Kim DeMulder. Cover by Sandy Plunkett and Alan Weiss.
The lead-in to #125 as we learn the entire secret behind the Elf and the Tribunal, and the reason why the Defenders must break up.
Cover price $0.60.