Abaddon

The Organon was a rumored Precursor artifact, believed by the Forerunners to be able to activate all Precursor artifacts. It was considered to be the most sought-after Precursor artifact by Forerunner archaeologists.

In approximately 100,300 B.C.E., Bornstellar Makes Eternal Lasting sought the artifact on both "Edom" and "Erde-Tyrene" using a pair of human guides to lead him to its presumed resting place in the Djamonkin Crater.

List of appearances

 * Halo: Cryptum