According to Ghoolion, the creation of the candles are described as follows: "It consists of candle wax, a Leyden Manikin and some snails from the Gargyllian Bollogg's Skull, very slowly simmered over a low flame - plus one or two secret alchemical ingredients, of course. The wick is woven from the spinal column of a Blindworm and the ganglia of an Oxenfrog." These candles experience pain when lighted, and emit a soft groaning sound in their agony.