"Ah, but there is something similar; it's called the Black Materia. It was hidden somewhere deep in the wilds of the Planet by the Cetra, and guarded by traps and monsters that would have destroyed most people that went after it."

Cloud and his band of misfits had gone after it, and a toy managed to defeat the last trap and thus allowed the Black Materia escape. That it was all part of a greater plot to summon Meteor back to the Planet was something that Genesis did not see a need to expand on. It was enough that there was such a thing and that it too had an effect on the people around it, especially SOLDIERs.

"I have heard that it was the key towards the Planet's final death. There was an opposite materia to counter it known as the White Materia, but in the end the very Lifestream rose up to defend against it. However, the evidence of that taint affected those with SOLDIER cells, and from there, spread on to others."

Geostigma. The rotting death from the aftermath of that battle. He had not seen it having long gone into his mako bubble by then, but he heard about it from those that stepped into that chamber. Stories of AVALANCHE were favorites among the Deepgrounders, especially after Hojo rambled on about the Proto-materia and Vincent. From that came the search for Chaos and Omega that had Deepgrounders return to the surface to cleanse the rest of the world.

"Many worlds have a common echo; this is something I have seen here. But this sounds too close for me to say it is not connected."