The Doroschuk are alien creatures from another world, who seek to abduct those which exhibit even the least bit of frivolity. If they can induce their victims to dance (Will DC 10 avoids, but the natural inclinations of their victim determines the die rolled from 1d14 to 1d24), they are drawn into the world of the Doroschuk after 1d5 rounds of dancing, leaving the real world and their friends far behind.
A wizard or elf trying to learn planar step may have to intentionally join this dance in order to watch and learn the patterns made by their hands, which may be part of casting that spell.
Whether the world of the Doroschuk is a realm of never-ending dances and merriment, without any social requirements as to how one acts, or whether the Doroschuk consume their abducted victims, is open to speculation. At this point, the world of the Doroschuk is one that none has ever found. There are even some who claim that, in some ineffable fashion, the Doroschuk are capable of devouring the very rhythm of youth.
Doroschuk: Init +3; Atk fist +1 melee (1d3+1); AC 13; HD 2d8; MV 30’; Act 2d20; SP dance, abduction; SV Fort +4, Ref +6, Will +2; AL C.