A Demon trap is a magic device resembling a landmine. They are created by the sacrifice of a living being. Developed by the Vikings to protect their longhouses over the winter. Varvara Sidorovna is known to have used them. An improvised demon trap, of German type, was found at The Strip Club of Doctor Moreau. Another one was found in Albert Woodville-Gentle's flat.
When making a demon trap, a spirit is trapped at the point of death.
When handling demon traps one could use wood. The younger and greener the wood is, the better. Preferably a sapling.