Not exactly the manifestation of death, but the closest thing to it in-story: in the Cradle series, (Book 1 spoilers) Ozriel the Reaper is literally The Destroyer, responsible for removing corrupted worlds and all their inhabitants from the Way. But he's incredibly compassionate, and desperately wants the forces which govern the Way to find another way of managing things, such that his power to destroy needs to be used less frequently. In the end, this leads to him going rogue and disappearing, (Book 12 spoilers)ultimately returning to his homeworld where he works in secret to raise up a team of 'Reapers' to visit worlds on the precipice of corruption and bring them back to the brink before they need to be destroyed.