livers and lights

Helpless, the riders are borne into the Marsh, or a freshwater lake or even, so it is said in Grïmnørsland, the salt sea. After the waters close over their heads they are not seen again, although sometimes their livers and lights are found cast up on the shore.

... for I forgot he was old King Lear and a drownded A-rab all in one, and it most scared the livers and lights out of me.