The five rivers of Hades are: Phlegethon (fire), Cocytus (lamentation), Acheron (the river of sorrow or woe), Styx (hate), and Lethe (forgetfulness)
Those are the five rivers of Hades and you've thrown in the Hebrew word for atone (kipper, kippur). Or you have a KIPPER (Kids In Parents Pockets Eroding Retirment [Savings]) and are lamenting the fact? Or is it just that a kipper is a red herring and is thus not the path to follow?
From the Oxford Dictionary of Classical Myth & Religion: Charon, mythological ferryman, who ferries the shades across a river (usually Acheron(woe)) or a lake (Acherusia) into Hades proper.