The Netbook of Witches and Warlocks
By Timothy S. Brannan and The Netbook of Witches and Warlocks Team
Full netbook can be found on the followng website
This Dagger appears as a normal Dagger, a Detect Magic spell will reveal that it is a +1 Dagger. The true nature of this Dagger is revealed in combat. When ever and any time the Dagger scores a hit and causes at least 1 point of damage the victim must make a Will save (DC 15) or fall into a deep sleep similar to a Sleep spell. The sleep lasts for 2-5 rounds.