Gaseous Form [2]
(Alteration)
Reversible

Range:  0
Components:  V, S, M
Duration:  1 turn per level
Casting Time:  4
Area of Effect:  Creature touched
Saving Throw:  Negates

This spell causes an individual, as well as the non-living items which it carries or wears up to 1000 gp weight per level of the wizard, to become gaseous in form and able to flow accordingly at a base speed of 3 per round, subject to wind conditions. The gaseous form cannot be physically harmed except by magical fires or lightning, in which case damage is normal, but the gaseous creature may be affected by mind-related attacks such as charm, hold or suggestion spells. However, a whirlwind causes double damage to a creature in gaseous form.
The spell lasts for the entire duration and can only be removed by the reverse of the spell. During this period, the creature can see and hear, but no magic items or spells may be used. Psionics (except for body weaponry and shape alteration) will function normally, and psionic combat can take place. Spells cast on the creature prior to this spell will remain in effect for their normal durations (resist fire, protection from lightning, etc.).
The reverse, solidify form, allows the gaseous creature touched a saving throw versus death magic. If the creature touched fails the saving throw, the creature immediately resumes solid corporeal form and cannot resume gaseous form for the duration of the spell.
If the wizard casts this spell on himself, he may include his own familiar in the area of effect. If this spell, or its reverse, is cast on an unconscious or dead creature, it is allowed no saving throw.
The material component for gaseous form is a mouthful of smoke; the component for solidify form is a mouthful of rock.
Note: this spell was researched by the mage Paul, also known as Purple. Gaseous form was specifically invented for battling vampires with its reverse. Dimension door is a much better escape spell, and invisibility is a much better infiltration spell, but this one is fun to spring on new DMs.

