A witch's ladder is an object, in folk magic or witchcraft, that is made from knotted cord or hair, that constitutes a spell. It was believed that witches
...さらに表示 could cast a death spell over a person by tying the knots and then hiding the cord. The only way to undo the spell was to find the secreted cord and untie each knot.
The magic tricks to perform with our Witch’s ladder are to enclose the four parts halfway the ring and to disassemble this contraption.
