Portal (spell)
Portal was a level 7 Translocations spell which allowed the caster to move up to 9 floors up or down through the Dungeon. The spell had to be cast on a standard floor tile and always delivered the player to a staircase of the floor they selected. Standing on a staircase, doorway, or over water would make the spell fail, as would being in a dungeon branch. If the player attempted to move beyond the limits of the dungeon, they would be prompted to select a different floor.
This spell stopped working once you picked up the Orb of Zot.
Portal was formerly found in the following spellbook:
History
Portal was removed from the game in 0.8.0.