Guardians of the Galaxy Vol. 2 (2008-2010) #19

Plot

The time-lost Guardians are caught up to their knees in this Magus-ruled future. Then suddenly, they are rescued by Kang the Conqueror and an entire flock of Starhawks. Taking refuge in Kang's dwelling place called Limbo, where he restores the Guardians to their rightful ages, he explains that they must stop Adam Warlock when he becomes the Magus. He gives them a Cosmic Cube to expand the time window they need to kill Adam after he stops the Fault from expanding. He personally can't go back to stop Magus, otherwise he'll see him coming. But they are anomalies in time and unlikely to be noticed.

Unfortunately, the Church of Universal Truth forces storm Limbo, forcing Kang to send the Guardians back to their rightful time. They arrive just in time to stop Phyla-Vell from assassinating Adam. Star-Lord, armed with the Cube, then attempts to convince Adam to prevent his evil side from awakening. But it is too late, as Magus surfaces. He kills Gamora, Phyla, Cosmo, Mantis and Major Victory when they attempt to stop him. Drax attempts to kill him the same way he did with Thnaos: by pulling out his heart. But, being a magical being, Magus easily regenerates. With no choice left, Star-Lord uses the cube to repress Magus, before killing him. While the Church templeships explode all around them due to the death of their leader, the Guardians return to Knowhere to tell Moondragon of the losses they sustained.