"Then let's go swimming," suggested Dick. "Too hot to do anything else."

"Ma told me to stay pretty close about home. Somebody went into Mr. Lawson's house last week, when there wasn't anybody there, and took a whole lot of things. Guess she's afraid the same fellow will get into ours, whoever it was."

"Can't you lock the house?"

"Not from the outside. The front door will fasten on the inside, and so will the windows. But the kitchen door won't fasten at all. The lock is off."

After going through the house to see what could be done, Billy said: "I'll tell you what we'll do. We'll fasten everything but the kitchen door, and then bring old Ring down and tie him close to that. He won't let anybody get in."

Dick endorsed this plan, and they proceeded to carry it out. A stake was driven into the ground, and the dog's chain was fastened to it. Ring was part bull-dog, and rather too fond of using his teeth on strangers to be permitted to run at large.

"You'll keep 'em away, won't you, Ring?" said Billy, patting the dog's head. Then he brought a pan of water and placed it in Ring's reach, and they were ready to start.

Passing out through the gate, which they closed, but carelessly neglected to fasten, they crossed the prairie ridge that lay north of the house, and walked on slowly toward the swimming-place. The creek was more than a mile away. After reaching it, they amused themselves for an hour or two, then put on their clothes and started back.

Before coming in sight of the house they heard Ring barking furiously. Both started on a run to see what was the matter.

As soon as they came to where they could look over the ridge, Billy burst out laughing.