at does 'one' mean?" asked the men. "There is no such word as 'one'
in our language."

"They have no need of such a word," declared Nerle.

"We are only poor laborers," explained the men. "But over the hills
lie the cities of Twi, where the Ki and the Ki-Ki dwell, and also the
High Ki."

"Ah!" said Marvel, "I've heard of your High Ki. Who is he?"

The men shook their heads, together and with the same motion.

"We have never seen the glorious High Ki," they answered. "The sight
of their faces is forbidden. None but the Ki and the Ki-Ki has seen
the Supreme Rulers and High Ki."

"I'm getting mixed," said Nerle. "All this about the Ki and the Ki-Ki
and the High Ki makes me dizzy. Let's go on to the city and explore
it."

"That is a good suggestion," replied the prince. "Good by, my
friends," he added, addressing the men.

They both bowed, and although they still seemed somewhat frightened
they answered him civilly and in the same words, and closed their doors
at the same time.

So Prince Marvel and Nerle rode up the double path to the hills, and
the two cows became frightened and ran away with the same swinging
step, keeping an exact space apart. And when they were a safe distance
they both stopped, looked over their right shoulders, and "mooed" at
the same instant.

14. The Ki and the Ki-Ki

From the tops of the hills the travelers caught their first glimpse of
the wonderful cities of Twi. Two walls surrounded the cities, and in
the walls were two gates just alike. Within the inclosures stood many
houses, but all were built in pairs, from the poorest huts to the most
splendid palaces. Every street was double, the pavements running side
by side. There were two lamp-posts on every corner, and in the dim
twilight that existed these lamp-posts were quite necessary. If there
were trees or bushes anywhere, they invariably grew in pairs, and if a
branch was broken on one it was sure to be broken on the other, and
dead leaves fell from both trees at identically the same moment.

Much of this Marvel and Nerle learned after they had entered the
cities, but the view from the hills showed plainly enough that the
"double" plan existed everywhere and in every way in this strange land.

They followed the paths down to the gates of the walls, where two pairs
of soldiers rushed out and seized their horses by the bridles. These
soldiers all seemed to be twins, or at least mates, and each one of
each pai