Darkvision, Mass(Tome and Blood: A Guidebook to Wizards and Sorcerers)
Level: Sorcerer 4, Wizard 4, Spellthief 4,
Range: 10 feet
Target: All creatures in a 10-ft.-radius sphere around you at the time of casting
Duration: 1 hour/level
Saving Throw: None
Spell Resistance: Yes (harmless)
As darkvision, except that all creatures in the area at the time of casting receive the spell's benefits.