Arc 29The Ark and the Heir
William and the Alliance defeated the Flood on the Ark, claimed control of it, and brought the Halo rings into the Solar System. Years of military expansion and technological change followed, as Ivan took on Umbrella’s leadership duties and reprimanded his son Arthur.
- Halsey warned William that the Alliance needed a deterrent against stronger civilizations, and William resolved to control the Ark and its Halo Pulse Wave.
- Serena detected a Flood fleet at the Ark, and William ordered the Alliance forces to attack while the Star Killer and Dreadnought Warships destroyed enemy ships.
- William led a team to find the Ark’s Guide, and Sorrowful Solitude teleported him and Serena into the Flood-infested underground maze to retrieve the Indexer.
- William obtained the Indexer and faced the Primordial Foundation, which explained its plan to use the Flood and Covenant fleet to bring him to the Ark and then sacrificed its body to destroy the Flood.
- Serena confirmed that the Ark was free of Flood, and William used the Indexer to move it to Jupiter’s orbit before returning the fleet to Earth.
- Umbrella took control of the seven Halo rings, developed Pulse Wave defenses and Personal Halos, expanded its fleets, and made Venus habitable through terraforming.
- William arranged Ivan’s marriage to Xiya, Nova, and Athena, while Ivan later married Megan and began taking over Umbrella’s decision-making duties.
- Ivan entered Arthur’s bedroom with Ghost Agents and Megan, where he scolded Arthur after finding him teasing the maids instead of getting ready for school.