The eldest of six sisters and the heir apparent of the Argyle-Blakes, and an investigator for the Royal Theosophical Society
If thrown into a moat or a ditch, they react with water to make an area of ground a foot wide and solid enough to walk on rise from the bottom. If eaten-well, the body of the one who ate one of them is a real mess. Used to storm moats and forge rivers, streams and ditches. Must be kept dry until used.