f an enemy who fought only with the terrible
gleam of their eyes no one of them could have said. But they all worked,
and Diane helped, too, to place extra bows at points where they might be
needed and to put handfuls of arrows at the firing platforms spaced at
regular intervals along the barricade.

Chet smiled sardonically as he saw Herr Kreiss laboring mightily and
alone to rig a catapult that could be turned to face in all directions.
But he helped to bring in a supply of round stones from a distance down
the shore, though the picture of this medieval weapon being effective
against those broadsides of mental force was not one his mind could
easily paint.

* * * * *

And then Towahg came! Not the silent, swiftly-leaping figure that moved
on muscles like coiled steel springs! This was another Towahg who
dragged a bruised body through the grass until Harkness and Chet reached
him and helped him to the barricade.

"Gr-r-ranga!" he growled. It was the sound he had made before when he
had seen or had tried to tell them of the ape-men. "Gr-r-ranga!
Gr-r-ranga!" He pointed about him as if to say: "There!--and there!--and
there!"

"Yes, yes!" Chet assured him. "We understand: you met up with a pack of
them."

Whereupon Towahg, with his monkey mimicry, gave a convincing
demonstration of himself being seized and beaten: and the tooth-marks on
nearly every inch of his body gave proof of the rough reception he had
encountered.

Then he showed himself escaping, running, swinging through trees, till
he came to the camp. And now he raised his bruised body to a standing
position and motioned them toward the forest.

"Gr-r-ranga come!" he warned them, and repeated it over again, while his
face wrinkled in fear that told plainly of the danger he had seen.

Chet glanced at Harkness and knew his own gaze was as disconsolate as
his companion's. "He's met up with them," he admitted, "though, for the
life of me, I can't see how he ever got away if it was a crowd of
messenger-apes who could petrify him with one look. There's something
strange about that, but whatever it is, here's our guide in no shape to
travel."

* * * * *

Towahg was growling and grimacing in an earnest effort to communicate
some idea. His few words and the full power of his mimicry had been used
to urge them on, to warn them that they must flee for their lives, but
it seemed he had something el