Xit

Related to Blink, Xit ("Exit") can save your entire party from otherwise certain death. Cast within a dungeon, the spell will transport the spellcaster and all companions back to the entrance of the dungeon. When your party is imperiled, Xit can make for a fast escape to the relative safety of the surface.

Note that it only works while in one of the corridors connecting the various dungeon rooms. Xit needs preparation, and therefore can't be cast in dungeon rooms or in battle.