Thanos: Zero Sanctuary
Thanos is dead! The Mad Titan has been executed by the deadliest assassin in the galaxy: his adopted daughter, Gamora! But long before their twisted familial relationship came to a bloody end, how did it begin? Travel back to Gamora's childhood and the day her life changed forever. What kind of a father figure was the brutal and merciless Thanos of Titan? And did he mold her into what she became, or was Gamora born to be one of the most ferocious warriors in the cosmos? As Thanos' unholy Black Order forms, Gamora's training begins in the face of an oncoming war! But as the threat of mutiny grows, Thanos will do anything to keep his power - no matter the cost. A chain of events will spawn bloodshed and betrayal across the galaxy...but what does the Magus have to do with it?
Collecting THANOS (2019) #1-6.