After learning to be clean, the second lesson that Happy taught the twins was how to keep cool. Anne knew very well that dogs do not perspire like people, but only by the moisture that drips from their mouths, so that they need plenty of cool water to drink and shady places to lie in if they are to be comfortable in hot weather. She also knew that Waddles and Lumberlegs dug themselves holes in the dirt, as she thought to keep off the flies; but why Happy should try to burrow under the foundation of the nursery puzzled her. It was not to bury bones, for the chosen spot for that was far away from home. To help her, as well as to see what she would do, Anne loosened two or three stones from the foundation of the tool house that stood next to the kennel, much to Happy’s delight, who then began to burrow furiously, throwing the dirt behind her with her strong front paws. All day long she worked, while as soon as the dirt ceased coming out at the mouth of the burrow Anne could hear it flying up against the floor of the tool house, which, by the way, her father also used as a dark room for developing photographs. Late in the afternoon Anne heard Happy whining by the outside wall. She had kept at work all day, only leaving to feed the pups who at this time varied their milk diet with a dinner of puppy biscuit soaked in weak soup. Anne loosened a couple of stones at this side as well, and in a very few minutes Happy dug herself out and circled about, barking with every symptom of joy. But when Anne was about to replace the stones, the little beagle thrust herself between her mistress and the burrow in the same way as she had come between Waddles and the pups, when he came to look at them. Anne saw that Happy was working out some plan of her own, so she waited and the next day discovered it. In the morning when she went to look at the pups they were nowhere to be seen, the gate of the yard was closed, and for a moment Anne feared they might have been stolen, but baby barks from under the tool house reassured her. Going to the outside opening of the burrow and lying flat in the grass she peered in. At first she could see nothing, but in a minute the light from between the stone chinks revealed Happy and the twins stretched flat on their stomachs in the fresh earth, Mamma dozing comfortably, the youngsters yap-yapping to themselves; for having a deaf parent they were quite safe in saying anything that they chose. “It’s a cool house, a regular summer day-nursery, the dear clever mother to think of it!” exclaimed Anne in delight, quite forgetful of the fact that her own chin was resting in the dirt.