The Hunter's Curse is an automatically enacted curse when any supernatural hunter of the Brotherhood of the Five is slain by that which they hunt. The curse causes its victims to be psychologically tortured by the specific hunter after death by creating powerful hallucinations, slowly bringing them to a madness that coaxes them into taking their own life. The curse has affected several immortal beings, such as Klaus, an Original hybrid, though at the time his hybrid nature was bound, Elena, a non-Original vampire, and Silas, the first immortal.