Low $90
 | 
Mid $320
 | 
High $875
  • 1st appearance of Thanos, an Eternal from Titan born with the Deviants gene
  • 1st cameo appearance of Eros (Starfox), brother of Thanos
  • 1st appearance of Kronos, Grandfather of Thanos
  • 1st appearance of Mentor, father of Thanos
  • 1st appearance of Drax the Destroyer, created by Kronus to kill Thanos
  • 1st appearance of the Blood Brothers
Details
Publisher Marvel
Published Feb 1973
Written By Jim Starlin
Illustrated By Jim Starlin