Dark Way(Spell Compendium, p. 58)
Level: Bard 2, Cleric 2, Sorcerer 2, Wizard 2, Spellthief 2,
Components: V, S, DF,
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Effect: One bridge of force 5 ft. wide, 1 in. thick, and up to 20 ft./level long
Duration: 1 round/level
Saving Throw: None
Spell Resistance: Yes
You stand at the edge of the canyon and invoke the power. At your feet appears a thin black bridge that arches over the canyon.
You create a ribbonlike, weightless unbreakable bridge. A dark way must be anchored at both ends to solid objects, but otherwise can be at any angle. Like a wall of force (PH 298), it must be continuous and unbroken when formed. It is typically used to cross a chasm or a hazardous space. Creatures can move on a dark way without penalty, since it is no more slippery than a typical dungeon floor.
A dark way can support a maximum of 200 pounds per caster level. Creatures that cause the total weight on a dark way to exceed this limit fall through it as if it weren't there. You never fall through a dark way unless your own weight exceeds the spell's maximum capacity.