An arcane scroll. When the words are read aloud, a magical sigil will be inscribed upon the ground. Any who tread upon the sigil will be cast through the aether, only to emerge, bewildered, at a nearby location.
It is an inventory item that creates a temporary teleport gate upon the ground. Monsters touching this 'sigil' will be teleported to a random deathmatch start, likewise players are teleported to a random player start - similar to Hexen's Chaos Device. Useful for clearing areas of monsters or escaping from tricky locations.