The Black Flame Candle is a dark magical candle made from the fat of a hanged man. If lit by a virgin on Halloween night during a full moon, it would raise the spirits of the dead for as long as the flame burned (which was one night).

Just as the name describes, it literally burns a black flame, but shines no candlelight. This is likely because it is a form of dark magic.

Max Dennison, disbelieving and making fun of the legends of the Sanderson Sisters, accidentally lights it, and in doing so, arose them back from the dead.

The Black Flame Candle Spell is Solaten omnes saculorem tuba nriirum est.

The candle also prevents its users from dying before it is consumed, as shown when the Sanderson sisters are burned when they fall into Max and the girls' trap, as shortly after turning into smoke, they are resurrected moments later. Without any physical damage other than emanating smoke from their bodies.

Despite that the Black Flame Candle can only bring the Sanderson Sisters back for one night, the spell book reveals that they still can return somehow, as shown in the sequel, where with the creation of a new candle, and repeating the process of the spell that a virgin person would light it on a halloween night during a full moon, return again to the Sanderson sisters.

In addition, the sequel revealed that similar to the book, it is protected by black magic, which prevents it from being turned off prematurely.