t. "What would Shiel say to that?"

"Humph! I don't know if I ought to believe you," Hamar remarked. "Did
you feel me willing you to come here?"

"Rather!" Kelson said. "That is why I came. I seemed to hear your
voice say 'To Hyde Park--to Hyde Park--the Serpentine--the
Serpentine.'" Then sinking his voice he whispered, "What's up with the
policeman, he looks deuced queer?"

"He's in a trance. We found him like this," Hamar said. "He is
undoubtedly under the control of the Unknown. I expect it to speak
through him every moment. Get ready to take down all he says. I've
come prepared," and he handed Kelson and Curtis, each, a pencil and a
reporter's notebook.

He had hardly done so, when the policeman--a burly man well over six
feet in height, who was standing bolt upright as if at "attention," his
limbs absolutely rigid, his eyes wide open and expressionless--began
to speak in a soft, lisping voice that the trio at once identified
with the voice of the Unknown--the voice of the tree on that eventful
night in San Francisco.

"The great secret of medicine--the secret of healing--will now be
revealed to you," the voice said. "Pay heed. In cases of tumours and
ulcers take a young seringa, lay it for half an hour over the stomach
of the afflicted person, then plant it with the mumia, _i.e._ either
the hair, blood, or spittle of the sick person, at midnight. As soon
as the seringa begins to rot, the ulcer will heal.

"In phthisis pulmonalis, the mumia of the sick person should be
planted with a cutting of the catalpa, after the latter has been
subjected for some minutes to the breath of the diseased person. As
soon as the cutting shows signs of decay, the sick person will be
cured.

"In diabetes, plant the mumia of the patient with a bignonia, and as
soon as the latter begins to rot, the diabetes will go.

"In appendicitis, cover the stomach of the sick person with a piece of
raw beef, until the sweat enters it. Then give the meat to a cat, and
as soon as the latter has eaten it, the patient will recover."

"What becomes of the cat?" Kelson asked.

"The appendicitis is transferred to it," the voice explained. "It
should be killed at once.

"In cancer take the sea wrack Torrek Mendrek--a weed of deep mauve
colour streaked with white. It must be boiled for three hours in clear
spring water (3 ozs. of wrack to half a pint of water), and then let
to cool. When quite cold, a dessert-spoon of it should be taken by the