Transmute Rock to Magma (Reversible)

This spell turns a patch of rock or solid earth into fiery magma by superheating it in a matter of seconds. Anything caught within the area should make a saving throw vs. paralyzation or take 6d8 points of damage. The magma will remain for about 2 days, and then cool to a black circle of ash.

The reverse transmute magma to rock is only of temporary duration. It transforms magma to stone cool enough to walk on for one hour.