Netherworld

They went down into the netherworld.

In some religions, one's soul departs to a netherworld, instead of the heavens.

As Inanna prepares to descend she fastens the seven divine laws to her side, and as she walks toward the netherworld she speaks to her vizier, Ninshubur.

While I was astrally projecting, I felt my soul pass through many insubstantial netherworlds.

The missionary was motivated by a sincere desire to rescue souls from eternal torment in the netherworld.

Richard had been initiated into the netherworld of dog racing by his father, and knew all the popular greyhound performance-enhancing drugs.

Flicks is a large bar which has been in some conflict since it opened […] The nature of that conflict has been characterized as gay-straight, by the bar managers; as crazies-sane, by some residents; as predators-prey, by some bar patrons; and as "netherworld"-respectable, by some bureaucrats.