a of shooting a
rocket to the moon by means of successive charges of explosive much as
the new German rocket motor racers are powered. In this most recent
experiment he used a new powder mixture.

Prof. Goddard issued a statement after the demonstration, which said:

"My test was one of a series of experiments with rockets using an
entirely new propellant. There was no attempt to reach the moon or
anything of such a spectacular nature. The rocket is normally noisy,
possibly enough to attract considerable attention. The test was
thoroughly satisfactory, nothing exploded in the air, and there was no
damage except possibly that incidental to landing."

Terrors Unseen

_By Harl Vincent_

[Illustration: _"Eddie!" Lisa screamed suddenly. "Look out!"_]

[Sidenote: One after another the invisible robots escape Shelton's
control--and their trail leads straight to the gangster chief
Cadorna.]

Something about the lonely figure of the girl caused Edward Vail to
bring his car to a sudden stop at the side of the road. When first he
had glimpsed her off there on that narrow strip of rock-bound coast he
was mildly surprised, for it was a desolate spot and seldom frequented
by bathers so late in the season. Now he was aroused to startled
attention by the unnatural posture of the slender body that had just
been erect and outlined sharply against the graying September sky. He
switched off the ignition and sprang to the ground.

Bent backward and twisted into the attitude of a contortionist, the
little figure in the crimson bathing suit was a thing at which to
marvel. No human being could maintain that position without falling,
yet the girl did not fall to the jagged stones that lay beneath her.
She was rigid, straining. Then suddenly her arm waved wildly and she
screamed, a wild gasping cry that died in her throat on a note of
despairing terror. It seemed that she struggled furiously with an
unseen power for one horrible instant. Then the tortured body lurched
violently and collapsed in a pitiful quivering heap among the stones.

Eddie Vail was running now, miraculously picking his way over the
treacherous footing. The girl had fainted, no doubt of that, and
something was seriously wrong with her.

A mysterious mechanical something whizzed past; something that buzzed
like a thousand hornets and slithered over the rocks in a series of
metallic clanks. Then it was gone--or so it seemed in the confusion of
Eddie's mind;