Zeta Hydronis Secundus system

The Zeta Hydronis Secundus system was a planetary system within the Forerunner ecumene.

System summary
Prior to Flood invading the system, the system was hosted to several rich planetoids. However during the Forerunner-Flood war the system fell before the parasite leading to Gravemind shattering some of the planets.

System locations

 * Planetoid

Forerunner-Flood War
At the height of Forerunner power, the planetoids in the system hosted thriving colonies and impregnable fortresses, but during the Forerunner-Flood war the system fell before the parasite.

Post-Human-Covenant War
In the post-Covenant War era, the UNSC found the system, designating Site C to one of a handful of intact Forerunner structures that remained.

List of appearances

 * Halo 5: Guardians