In the 1880s, folklorist Walter Traill Dennison documented a complex ritual by a witch to pledge herself to the powers of Darkness. When the moon was full, they would go to the shore at midnight, and turn three times against the sun before lying down on the devil’s place. The liminal place where land meets the sea. The witch would then stretch out their arms and legs, and place stones beside each of them. Further stones were also placed by the head, the chest and over the heart. Once enclosed by the circle of seven stones, the witch spoke the words in the charm aloud. 

 

After speaking these words, they turned onto their left side, arose, and flung the stones used in the ritual into the sea. The Orcadian scholar Hugh Marwick, suspected elements of the rite - the ebb, the anticlockwise turns, and the positioning of the stones - represented an actual Orcadian tradition. However, he believed that certain lines did not fit with the rest of the charm and concluded that they were added later to impart an air of "evil" to the incantation.

 

After speaking the full charm.  I have recorded the lines believed to be the original parts as a chant. In case you’re wondering, Wallowa is a Scottish term for the devil. It is believed to refer to the Old Norse "volva" (prophetess) which connects it with older pagan elements found throughout Orkney folklore that calls on power of the "great dark witch".

(Information taken from www.orkneyjar.com)