After they had eaten and talked together for a while under the twinkling stars, they all went to bed and the people were soon asleep. The Lion and the Tiger had almost fallen asleep, too, when they were roused by the screams of the monkeys, for the Glass Cat was pulling their tails again. Annoyed by the uproar, the Hungry Tiger cried: "Stop that racket!" and getting sight of the Glass Cat, he raised his big paw and struck at the creature. The cat was quick enough to dodge the blow, but the claws of the Hungry Tiger scraped the monkey's cage and bent two of the bars.

Then the Tiger lay down again to sleep, but the monkeys soon discovered that the bending of the bars would allow them to squeeze through. They did not leave the cage, however, but after whispering together they let their tails stick out and all remained quiet. Presently the Glass Cat stole near the cage again and gave a yank to one of the tails. Instantly the monkeys leaped through the bars, one after another, and although they were so small the entire dozen of them surrounded the Glass Cat and clung to her claws and tail and ears and made her a prisoner. Then they forced her out of the tent and down to the banks of the stream. The monkeys had noticed that these banks were covered with thick, slimy mud of a dark blue color, and when they had taken the Cat to the stream, they smeared this mud all over the glass body of the cat, filling the creature's ears and eyes with it, so that she could neither see nor hear. She was no longer transparent and so thick was the mud upon her that no one could see her pink brains or her ruby heart.

In this condition they led the pussy back to the tent and then got inside their cage again.

By morning the mud had dried hard on the Glass Cat and it was a dull blue color throughout. Dorothy and Trot were horrified, but the Wizard shook his head and said it served the Glass Cat right for teasing the monkeys.

Cap'n Bill, with his strong hands, soon bent the golden wires of the monkeys' cage into the proper position and then he asked the Wizard if he should wash the Glass Cat in the water of the brook.

"Not just yet," answered the Wizard. "The Cat deserves to be punished, so I think I'll leave that blue mud—which is as bad as paint—upon her body until she gets to the Emerald City. The silly creature is so vain that she will be greatly shamed when the Oz people see her in this condition, and perhaps she'll take the lesson to heart and leave the monkeys alone hereafter."

However, the Glass Cat could not see or hear, and to avoid carrying her on the journey the Wizard picked the mud out of her eyes and ears and Dorothy dampened her handkerchief and washed both the eyes and ears clean.

As soon as she could speak the Glass Cat asked indignantly: "Aren't you going to punish those monkeys for playing such a trick on me?"

"No," answered the Wizard. "You played a trick on them by pulling their tails, so this is only tit-for-tat, and I'm glad the monkeys had their revenge."

He wouldn't allow the Glass Cat to go near the water, to wash herself, but made her follow them when they resumed their journey toward the Emerald City.

"This is only part of your punishment," said the Wizard, severely. "Ozma will laugh at you, when we get to her palace, and so will the Scarecrow, and the Tin Woodman, and Tik-Tok, and the Shaggy Man, and Button-Bright, and the Patchwork Girl, and—"

"And the Pink Kitten," added Dorothy.

That suggestion hurt the Glass Cat more than anything else. The Pink Kitten always quarreled with the Glass Cat and insisted that flesh was superior to glass, while the Glass Cat would jeer at the Pink Kitten, because it had no pink brains. But the pink brains were all daubed with blue mud, just now, and if the Pink Kitten should see the Glass Cat in such a condition, it would be dreadfully humiliating.

For several hours the Glass Cat walked along very meekly, but toward noon it seized an opportunity when no one was looking and darted away through the long grass. It remembered that there was a tiny lake of pure water near by, and to this lake the Cat sped as fast as it could go.

The others never missed her until they stopped for lunch, and then it was too late to hunt for her.

"I s'pect she's gone somewhere to clean herself," said Dorothy.

"Never mind," replied the Wizard. "Perhaps this glass creature has been punished enough, and we must not forget she saved both Trot and Cap'n Bill."

"After first leading 'em onto an enchanted island," added Dorothy. "But I think, as you do, that the Glass Cat is punished enough, and p'raps she won't try to pull the monkeys' tails again."

The Glass Cat did not rejoin the party of travelers. She was still resentful, and they moved too slowly to suit her, besides. When they arrived at the Royal Palace, one of the first things they saw was the Glass Cat curled up on a bench as bright and clean and transparent as ever. But she pretended not to notice them, and they passed her by without remark.

Dorothy and her friends arrived at the Royal Palace at an opportune time, for Ozma was holding high court in her Throne Room, where Professor H. M. Wogglebug, T.E., was appealing to her to punish some of the students of the Royal Athletic College, of which he was the Principal.

This College is located in the Munchkin Country, but not far from the Emerald City. To enable the students to devote their entire time to athletic exercises, such as boating, foot-ball, and the like, Professor Wogglebug had invented an assortment of Tablets of Learning. One of these tablets, eaten by a scholar after breakfast, would instantly enable him to understand arithmetic or algebra or any other branch of mathematics. Another tablet eaten after lunch gave a student a complete knowledge of geography. Another tablet made it possible for the eater to spell the most difficult words, and still another enabled him to write a beautiful hand. There were tablets for history, mechanics, home cooking and agriculture, and it mattered not whether a boy or a girl was stupid or bright, for the tablets taught them everything in the twinkling of an eye.

This method, which is patented in the Land of Oz by Professor Wogglebug, saves paper and books, as well as the tedious hours devoted to study in some of our less favored schools, and it also allows the students to devote all their time to racing, base-ball, tennis and other manly and womanly sports, which are greatly interfered with by study in those Temples of Learning where Tablets of Learning are unknown.

But it so happened that Professor Wogglebug (who had invented so much that he had acquired the habit) carelessly invented a Square-Meal Tablet, which was no bigger than your little finger-nail but contained, in condensed form, the equal of a bowl of soup, a portion of fried fish, a roast, a salad and a dessert, all of which gave the same nourishment as a square meal.

The Professor was so proud of these Square-Meal Tablets that he began to feed them to the students at his college, instead of other food, but the boys and girls objected because they wanted food that they could enjoy the taste of. It was no fun at all to swallow a tablet, with a glass of water, and call it a dinner; so they refused to eat the Square-Meal Tablets. Professor Wogglebug insisted, and the result was that the Senior Class seized the learned Professor one day and threw him into the river—clothes and all. Everyone knows that a wogglebug cannot swim, and so the inventor of the wonderful Square-Meal Tablets lay helpless on the bottom of the river for three days before a fisherman caught one of his legs on a fishhook and dragged him out upon the bank.