The world swirls and then pops into focus. You're in a hemispherical cavern 200 feet in diameter. Water pools around you ankles to a depth of six inches of stagnant but relatively clean water. On the roof is a ten foot diameter hole covered by a metal grate. Arranged around the room's circumference are 6 raised stone slabs obviously meant as beds.
More distressing however is a sort of deadness each of you can feel inside of your being. It is as though the lifeforce of the multiverse simply does not exist here. You are in a dead magic zone.
Also in the room with you are a motley assortment of strange creatures most of them obviously of immense power but now under bondage.