Index chamber

The Index Chamber is a large room within the core of every Library on each Installation. Inside every chamber is the Index. The Index Chamber is the most heavily protected area in any of the Forerunner installations. Intruders are met by Sentinels, who are programmed to keep the intruders away from the Index Chamber. .

Background
It is the storage area of the repository of all Forerunner knowledge and study of the Flood, the Index. The Index itself is a T-shaped object of similar size to a human forearm. It is both a store of information and the key to activating a single Installation.

At the very center of the Index Chamber is the Index, suspended in mid-air by an anti-gravity device, as this can be seen when there's a glow around it, sort of like a shield. It can only be reached via a vast anti-gravity powered lift that remains docked four levels above the floating Index.

This lift may require the authorization of the Installation's Monitor in order to be activated, starting the process of retrieving the Index and the final act of activating the Installation and killing every sentient being (Humans, Sangheili, San 'Shyuum, etc.) in the galaxy.

Related Articles

 * Library
 * Index