asp the language of
the dawn man. He still did not understand Guru as well as Michaelson did
but he could understand enough for his purpose.

"Just the two of you going down there?" Michaelson questioned.

"Yes. Any more would only increase the chances of discovery. We've got
to know the lay of the land and we've got to have some idea of what we
will meet down there before we attempt a rescue. We probably will not be
able to make an attack before tomorrow night anyhow."

After disposing his force and ordering them to get as much rest as
possible, Craig and Guru started down to the city of the Ogrum.
Michaelson had to be restrained from accompanying them.

"You stay here," Craig bluntly told the scientist. "You're not as young
as I am and you need a rest."

Overhead was a broad tropic moon. There was no wind. From the great
swamp came the only sound that broke the silence of the night, the
scream of the dinosaurs, the roaring of the great lions of this time.
Below lay the strange city of the Ogrum.

* * * * *

Craig felt the weirdness of the scene as he and Guru started down the
side of the mountain. What kind of creatures were the Ogrum? What secret
lay behind their existence? They had left no mark on history as he knew
it. So far as the human race knew, the Ogrum had never existed. And
yet--the sudden thought was startling--there was a word in the English
language that came close to describing these creatures--ogre! Ogre and
Ogrum were very similar. Were these the original ogres, those
mythological monsters who devoured human beings? Had the Ogrum, known,
feared, and named by the dawn men, come down through legends as ogres?

The thought sent a shivery feeling up Craig's spine. Was he going down
into a city of monsters? Were Stinky Higgins and Margy Sharp and
hundreds of men from the Idaho held as prisoners by ogres? What horrible
secret was hidden down there in that silent city?

They reached the edge of the city. It was larger than Craig had thought.
Hundreds, possibly thousands of rude huts, were hidden in the jungle
growth. The place smelled bad. Apparently no effort at sanitation had
ever been made. A nauseous stench arose from the ground. Craig wrinkled
his nose in disgust.

"Filth!" he muttered. "This place needs nothing so much as it needs
burning to the ground. Where Ogrum, Guru?" he said, turning to the dawn
man.

"Ogrum sleep," Guru answered. "In little caves," he