Unluckily the raft was by this time well out of reach, and nobody was able to fetch it back, much to the disappointment of those who had not yet had a chance to try it. Marian was very offended at what she considered the ill-timed mirth of her companions. "You're most unkind!" she said angrily, walking away by herself and trying to wipe her boots clean on the grass. Feeling that they had had the best of the joke, the girls bore no malice, and, after leaving her for a few minutes to get over her sulks, they made overtures of friendship. "I'll tell you what," said Linda; "I found a box of wax matches in the road on the way up, and put them in my pocket. Suppose we set a light to this little gorse bush; it's all withered, and will make quite a bonfire. Then Marian can dry her boots." The bush caught fire with the greatest ease, and blazed away at once. Marian pulled off her boots and stockings, and, standing barefoot on the grass, held them up to the flame, while the others collected round, wishing they had some chestnuts or potatoes with them, or a kettle which could be boiled for tea. "I believe the grass is beginning to burn too!" said Nina. "Stand back, Connie! Why, it's caught the next bush as well!" The children looked at each other with horrified faces. The fire was spreading rapidly along the ground, and two large bushes were soon in a blaze. Their modest beginning was evidently leading to more than they had ever imagined. Fortunately the white column of smoke suddenly rising up through the clear air attracted Miss Kaye's attention, and brought her hurrying over the crest of the hill to discover the cause. She was much surprised to find the members of the third class, one of them with bare feet, apparently dancing like wild Indians round a fire, and lost no time in running to the spot. "You naughty girls!" she exclaimed. "What have you been doing? Marian, where are your boots? I am astonished at you! Who lighted this fire?" "We're trying to stamp it out," said Brenda. "It was catching all the grass." "But who lighted it?" "We did, Miss Kaye," replied Linda, rather shamefacedly, "to dry Marian's boots." "People often set fire to the moors," added Connie. "I've seen whole hillsides burning sometimes, so I don't suppose it matters. We're helping the farmer." "The farmer may like to set his own furze alight, but he wouldn't thank any chance strangers for doing so for him. If we don't mind he'll be claiming damages from us," said Miss Kaye. "We must not leave here until these bushes have burnt themselves safely out, and we must stamp on any sparks which fall from them on to the grass. This is the way that a great prairie fire is often started in America; the flames will grow in strength, and sweep over miles of country, destroying farms and villages, and carrying desolation and destruction before them. I didn't think you would have been in such mischief directly my back was turned."