chunk of deep green glass, and looked dismal and forbidding in the
extreme. Half way up the steep was a yawning cave, black as night
beyond the point where the rainbow rays of the colored suns reached
into it.

The Mangaboos drove the horse and the kitten and the piglets into this
dark hole and then, having pushed the buggy in after them--for it
seemed some of them had dragged it all the way from the domed
hall--they began to pile big glass rocks within the entrance, so that
the prisoners could not get out again.

"This is dreadful!" groaned Jim. "It will be about the end of our
adventures, I guess."

"If the Wizard was here," said one of the piglets, sobbing bitterly,
"he would not see us suffer so."

"We ought to have called him and Dorothy when we were first attacked,"
added Eureka. "But never mind; be brave, my friends, and I will go
and tell our masters where you are, and get them to come to your rescue."

The mouth of the hole was nearly filled up now, but the kitten gave a
leap through the remaining opening and at once scampered up into the
air. The Mangaboos saw her escape, and several of them caught up
their thorns and gave chase, mounting through the air after her.
Eureka, however, was lighter than the Mangaboos, and while they could
mount only about a hundred feet above the earth the kitten found she
could go nearly two hundred feet. So she ran along over their heads
until she had left them far behind and below and had come to the city
and the House of the Sorcerer. There she entered in at Dorothy's