In the early 1900s, restorative waters are a popular health draw, and Washington's Healing Sands Sanitarium is famous for its rest cure, fermented diets, and electrotherapy. No one has ever died at Healing Sandsuntil now. Benjamin Bradshaw, a professor at the University of Washington and a specialist in electricity, is summoned to investigate and sees that the death was no accident. But the clue that is obvious to him will seem as insubstantial as smoke to anyone other than an electrical engineer. Meanwhile, one among them is a walking dead man, and another possesses the capacity for murder.
