Towards the end of the book "Pandora's Star" there is only one known immOTile cluster left in existence in the Dyson Alpha system. That immOTile cluster, LRH, has used its knowledge of wormhole technology, taken from the memory storage of the captured human astronomer Dudley Bose, to eliminate all the other immOTile clusters.
Having learned the location of the Commonwealth planets, LRH then undertakes to invade the Commonwealth, eliminate all human life, and claim the territory as its own. Its ultimate plan is to spread across the entire galaxy and beyond, ensuring his own immortality - with each system claimed and with each immOTile cluster that is founded, the probability of his being completely destroyed by a single event dwindle.
Having learned the location of the Commonwealth planets, LRH then undertakes to invade the Commonwealth, eliminate all human life, and claim the territory as its own. Its ultimate plan is to spread across the entire galaxy and beyond, ensuring his own immortality - with each system claimed and with each immOTile cluster that is founded, the probability of his being completely destroyed by a single event dwindle.