Blink

By means of the blink spell, the wizard causes his material form to "blink" directly from one point to another at a random time and in a random direction. The caster cannot blink into a solid object -- movable objects of size and mass comparable to the caster are shoved aside when the caster blinks in. If blinking is impossible except into a fixed, solid object, the caster is then trapped on the Ethereal Plane.

Note: This version of blink originally appeared in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.