Playable on a non-Wizard character moving in a Shadow-land [s] or a Dark-domain [d]. Target character makes a roll (draws a #) and adds his mind. If that result is less than 12, that character splits off into a different company. This new company immediately returns to his original company's site of origin.
"Terror seized him. He shrank back, and for a moment he stood trembling in the hall."
-LotRI