Lethe

So John Gradus is a journeyer in his own right, learning where he went wrong in life to reach the Lethe and reincarnate.

Was the water of the Styx flowing beneath his fingers, or maybe the Lethe?

The underground pool bears echoes of Lethe, the river of forgetfulness in the classical Greek underworld of Hades.

The only sound comes from the gently flowing stream of Lethe, the river of forgetfulness, where the waters murmuring entice to sleep.

The newest recruit to Lethe is Galaxy Stern, who has a very troubled past and, relatedly, has the rare and quite awful ability to see ghosts.