Not Corruption per se, as this place knows it. But I was a virologist before I fell into Deerington. I've probably said I was exposed to something which we were working on. While it mutated me into something greater than human, that came with a price: if I didn't dose myself regularly with a serum to keep the pathogens in check, something very like Corruption would set in and drive me mad, to say the least. [Dryly, he continues.] It's as if fate and the Pthumerians wanted me here, applying my knowledge and experience.

There are phases to Corruption, just as there are to any infectious illness, and while there are some common signs such as slurred speech, clouding of the eyes and loss of coordination, many Sleepers show signs peculiar to them, and often predictive of the Beast they may transform into.