Before Infinity Gauntlet, Jim Starlin spent years establishing who Thanos was and why he worshipped Death. This omnibus collects the origin material and early cosmic battles that made Thanos something other than a standard villain — a true believer whose nihilism has theological roots. It covers the foundational Starlin Thanos material that Infinity Gauntlet was built upon. Essential pre-Infinity Gauntlet Why it's worth it.