It will be remembered by gentle readers that the words of power for the Serpent Pillars are Sueacron and Doracron, which have a clear connection to redsu and recdu.
Rec du and rec su are spells in Ultima III:
"E. Rec Su
Part of thine enlightenment is the realization that there are no boundaries. When this truth is known unto thee, the material world is far less limiting than ordinarily supposed.
As thou descendeth deeper and deeper into the bowels of the earth, thou shall likewise be descending into greater evil. Being thyself of a good nature, this tends to give thee a natural buoyancy, as if in water. Speak the name of this supplication whilst touching thy staff to the ceiling of a dungeon passage. This will cause the ceiling to become translucent; thee an thy party will freely float to the next higher dungeon level.
F. Rec Du
The range of thine ability for spiritual movement is not limited to ascension. Far below the earth's surface, and far below the deepest recesses of the deepest dungeon, flow the molten streams and rivers which feed the earth's core. Here also resides The Great Evil. Due to thy natural buoyancy, downward travel is somewhat more difficult and less desirable than upward. If thou must descend into evil, speak the name of this supplication whilst tapping thy staff upon the floor. The floor will become translucent; thee and thy party will slowly to the next lower dungeon level. "
Sue Acron and Dor Acron are likewise spells therein:
"D. Dor Acron
Very useful when one desires to bypass a particularly bothersome portion of a dungeon. Dor Acron is cast with the aid of the left forepaw of a badger. Store the paw with care, for if it is damages in any way which would have hindered the badger's movement, they way will be similarly impeded.
Having made these preparations, when thou desires to enact the augury, gather thy party into a ring. While holding the paw, chant this ancient rhyme:
Liedlan Spulger Idskrin
Gruen Beast Trentle Ban
When this spell is cast, the mage and his companions will be transported to the next lower level of inhabitation.
E. Sue Acron
This rune is closely related to Dor Acron, direction being the only difference in effect. In this case the dried wing of a bird is needed. The bird must be shot through the breast with an arrow whilst in flight. Thread the wing on a leather thong and tie it to the tip of thy staff.
Once again, gather thy party into a ring a while holding the wing intone this verse magical movement:
Liedlan Spulger Idstrin
Faun Beast Fentri Chem
As the words are chanted thy party will be lifted through the floor above thee to the dungeon's next higher level. "
Rec Du and Rec Su are