Board Thread:Questions and Answers Forum/@comment-146.90.74.96-20150925095040/@comment-26388714-20151102135246

You put it into the Pedestal, then return to the central area of the Hull Breach to fight some Major Hive. Then, they summon an Ultra Ogre, who drops a Wormfeeder Rune. Be sure to search the area around him, because it drops as one of those loot pyramids.