“I’ll creep under the house, Mrs. Polby,” I said. “Just keep calm.”

“Oh, will you? God bless you! This is the worst thing that ever happened to me,” she moaned.

So I crept under the house. It was all I could do to get along, for the ground was wet and slimy and disgustingly filthy, with old straw, broken bottles, and every kind of trash. And Karl Johan was right—rats. Ugh! But I crept and crept. Mrs. Polby stamped on the floor and called all the time so that I should know about where the key would lie.

I fumbled and fumbled in the dark. No, I could not find it. A rat ran right over my hand and I only just managed to keep myself from screaming.

“Can’t you find it?” called Mrs. Polby.

There! my hand touched it! I was so glad that I shouted loudly, “I’ve got it! I’m coming, I’m coming!” as I started to creep out. But you may well believe that it was difficult to turn one’s self around under that floor; it was about the hardest of all.

Ah-h! Now I was out in the air again! My, but it was good! Into the house I bounded, put the key in the lock and flung the door wide open.

Mrs. Polby was sitting on the floor, chalk-white in the face and without power to speak at first. In a moment, though, she threw her arms about my neck with such force that I nearly fell over backward, for she is pretty heavy, I can tell you; then she began to cry.

“I really didn’t throw the key away,” I said.

“Oh, no! The keyhole has been bad this long time—and you have saved my life——Oh! Oh!”