Dariastren's Shadow Well

This spell turns the shadow of a victim into a temporary gateway that leads to a pocket of the Demiplane of Shadow. A victim must make a successful saving throw vs. spell every round for the duration of the spell or be sucked into his own shadow and transported there. The victim sees the area as a deserted, shadowy duplicate of the real world. While there, the victim suffers no real harm but is bedeviled by shadowy phantasms who stalk and taunt without actually attacking. At the end of the spell's duration, the victim is expelled back into the real world and suffers the effects of a spook spell for 1d3 additional rounds, although the victim flees from a nameless, unknown foe—not the spellcaster.