As they were preparing to leave, Dorothy asked: "Can you tell us where there is a dark well?"  
"Never heard of such a thing," said the Tottenhot. "We live our lives in the dark, mostly, and sleep in the daytime; but we've never seen a dark well, or anything like one."
 
"Does anyone live on those mountains beyond here?" asked the Scarecrow.
 
"Lots of people. But you'd better not visit them. We never go there," was the reply.
 
"What are the people like?" Dorothy inquired.
 
"Can't say. We've been told to keep away from the mountain paths, and so we obey. This sandy desert is good enough for us, and we're not disturbed here," declared the Tottenhot.
 
So they left the man snuggling down to sleep in his dusky dwelling, and went out into the sunshine, taking the path that led toward the rocky places. They soon found it hard climbing, for the rocks were uneven and full of sharp points and edges, and now there was no path at all. Clambering here and there among the boulders they kept steadily on, gradually rising higher and higher until finally they came to a great rift in a part of the mountain, where the rock seemed to have split in two and left high walls on either side.
 
"S'pose we go this way," suggested Dorothy; "it's much easier walking than to climb over the hills."
 
"How about that sign?" asked Ojo.
 
"What sign?" she inquired.
 
The Munchkin boy pointed to some words painted on the wall of rock beside them, which Dorothy had not noticed. The words read:
"LOOK OUT FOR YOOP."
 
The girl eyed this sign a moment and turned to the Scarecrow, asking:
 
"Who is Yoop; or what is Yoop?"
 
The straw man shook his head. Then looked at Toto and the dog said "Woof!"
 
"Only way to find out is to go on," said Scraps.
 
This being quite true, they went on. As they proceeded, the walls of rock on either side grew higher and higher. Presently they came upon another sign which read:
"BEWARE THE CAPTIVE YOOP."
 
"Why, as for that," remarked Dorothy, "if Yoop is a captive there's no need to beware of him. Whatever Yoop happens to be, I'd much rather have him a captive than running around loose."
 
"So had I," agreed the Scarecrow, with a nod of his painted head.
 
"Still," said Scraps, reflectively:
 
"Yoop-te-hoop-te-loop-te-goop!
Who put noodles in the soup?
We may beware but we don't care,
And dare go where we scare the Yoop."
 
"Dear me! Aren't you feeling a little queer, just now?" Dorothy asked the Patchwork Girl.
 
"Not queer, but crazy," said Ojo. "When she says those things I'm sure her brains get mixed somehow and work the wrong way.
 
"I don't see why we are told to beware the Yoop unless he is dangerous," observed the Scarecrow in a puzzled tone.
 
"Never mind; we'll find out all about him when we get to where he is," replied the little girl.
 
The narrow canyon turned and twisted this way and that, and the rift was so small that they were able to touch both walls at the same time by stretching out their arms. Toto had run on ahead, frisking playfully, when suddenly he uttered a sharp bark of fear and came running back to them with his tail between his legs, as dogs do when they are frightened.
 
"Ah," said the Scarecrow, who was leading the way, "we must be near Yoop."
 
Just then, as he rounded a sharp turn, the Straw man stopped so suddenly that all the others bumped against him.
 
"What is it?" asked Dorothy, standing on tip-toes to look over his shoulder. But then she saw what it was and cried "Oh!" in a tone of astonishment.
 
In one of the rock walls—that at their left—was hollowed a great cavern, in front of which was a row of thick iron bars, the tops and bottoms being firmly fixed in the solid rock. Over this cavern was a big sign, which Dorothy read with much curiosity, speaking the words aloud that all might know what they said:
"MISTER YOOP—HIS CAVE
 
The Largest Untamed Giant in Captivity.
Height, 21 Feet.—(And yet he has but 2 feet.)
Weight, 1640 Pounds.—(But he waits all the time.)
Age, 400 Years 'and Up' (as they say in the
Department Store advertisements).
Temper, Fierce and Ferocious.—(Except when asleep.)
Appetite, Ravenous.—(Prefers Meat People and
Orange Marmalade.)
 
STRANGERS APPROACHING THIS CAVE DO SO AT THEIR
OWN PERIL!
 
P.S.—Don't feed the Giant yourself."
 
"Very well," said Ojo, with a sigh; "let's go back."
 
"It's a long way back," declared Dorothy.
 
"So it is," remarked the Scarecrow, "and it means a tedious climb over those sharp rocks if we can't use this passage. I think it will be best to run by the Giant's cave as fast as we can go. Mister Yoop seems to be asleep just now."
 
But the Giant wasn't asleep. He suddenly appeared at the front of his cavern, seized the iron bars in his great hairy hands and shook them until they rattled in their sockets. Yoop was so tall that our friends had to tip their heads way back to look into his face, and they noticed he was dressed all in pink velvet, with silver buttons and br............