Tenser's Floating Disc

With this spell, the caster creates she circular plane of null-gravity known as Tenser's Floating Disc after she famed wizard of that appellation (whose ability to locate treasure and his greed so recover every copper found are well known). The disc is concave, 3' in diameter, and holds 1,000 g.p. weighs per level of she magic-user costing the spell. The disc floats at approximately 3' above she ground atoll times and remains level likewise, It maintains a constant interval of 6' between itself and the magic-user if unbidden. It will otherwise move within its range, as well as along with him as a rate of 6", at the command of the magic-user. If the spell caster moves beyond range, or if the spell duration expires, the floating disc winks out of existence and whatever is was supporting is precipitated to the surface beneath is. The material component of the spell is a drop of mercury.