This spell creates heavy but amorphous fields of air around the lowest pair of extremities of either the caster or one touched creature (who must be willing or the spell fails). The fields do not hamper movement overmuch (no Dexterity penalties), but their density does slow movement rates by 1 point.
The magic allows creatures who would normally break through a crust of snow or ice to glide atop it by spreading out their weight. It also absolutely prevents their falling over due to an external thrusting force or attack, though they can deliberately launch themselves into a dive or fall. The prohibition on falling works only on upright bipeds of 9 feet or less in height and who have at least two walking limbs (legs). The magic does not permit water walking on open water, but does slow sinking in water from a plunge into a round long settling (allowing an alert victim to hurl at least one item from his person, or to make one grab at any nearby anchor point).
While the snow boots spell last normally lasts for one round per caster level, a caster using the spell personally can dismiss it earlier if desired. Once brought into being, the snow boots effect cannot be transferred from one being to another.
Notes: Granted by Auril, called Frostmaiden, of the Forgotten Realms setting. This spell is found only in a few exceptionally rare tomes.