AD&D 2nd Edition

A spider climb spell enables the recipient to climb and travel upon vertical surfaces as well as a giant spider, or even hang upside down from ceilings. Unwilling victims must be touched and are then allowed a saving throw vs. spell to negate the effect. The affected creature must have bare hands and feet in order to climb in this manner, at a movement rate of 6 (3 if at all encumbered). During the course of the spell, the recipient cannot handle objects that weigh less than a dagger (one pound), for such objects stick to his hands and feet. Thus, a wizard will find it virtually impossible to cast spells if under a spider climb spell. Sufficient force can pull the recipient free; the DM can assign a saving throw based on circumstances, the strength of the force and so on. For example, a creature with a Strength of 12 might pull the subject free if the subject fails a saving throw vs. paralyzation (a moderately difficult saving throw). The caster can end the spell effect with a word. The material components of this spell are a drop of bitumen and a live spider, both of which must be eaten by the spell recipient.