Marjorie and Fidge shared a little tent next to the Dodo and Dick, and the children made themselves as comfortable as they could, under the circumstances, with some cushions and rugs, with which the Porter had provided them; and, after chatting for a little while about their strange adventures, dropped off to sleep. They were awakened after an hour or two by the clanging of a huge bell, and, hastily putting their heads out of the tent, beheld the Porter rushing up and down the platform, ringing his bell violently. The candle was flaring away at the top of the signal pole, and the children jumped to the conclusion that the train had been signaled. "What's up!" called out Dick, as the Porter approached. There was no answer, and the great bell was plied more vigorously than ever. "Oh! _do_ leave off!" screamed the Dodo. "What's the bell for?" "To keep you awake," shouted the Porter. "I shall keep on ringing this bell all night to prevent you from going to sleep, in case the train comes in and you don't hear it." "But the noise will drive us mad," expostulated the Dodo. [Illustration: "'Oh! Do leave off!' screamed the Dodo."] "H'm! won't have far to drive you, then," said the Porter, rudely. "Howsomedever, I'm going to do my duty, whatever happens, and this 'ere bell I'm going to ring if I drops." Remonstrance was vain, and as it was hopeless to try and sleep through all the noise the children got up again, and had hardly done so, when, looking towards the end of the platform they beheld a red and a green light appearing around the curve, and a moment later the train dashed into the station. "Crystal Palace train! Crystal Palace train! Take your seats, there!" shouted the Guard; and, regardless of the fact that they had no tickets, the children and their friends scrambled in. CHAPTER XVIII. A NIGHT IN THE TRAIN. "What a funny puff-puff!" exclaimed Fidge, when, all of the creatures on the platform having entered the train, it slowly steamed out of the station, while the Porter took down the candlestick signal and carefully extinguished the light, remarking aloud, as he did so, "Well, thank goodness, _they're_ gone!" "I think," said Dick, looking about him curiously, "that it must be what is called a sleeping car." "Yes, of course it is," agreed the Prehistoric Doctor, who had joined the party. "See, here are the sleeping bunks. This is mine," he added, taking possession of one of the lower berths by throwing his carpet bag on to it. "I'll have the one above it," announced the Palaeotherium, climbing up to the upper berth, and clumsily treading on the Prehistoric Doctor's hand as he did so. "I shall have to be near my Doctor, of course, as I am an invalid," remarked the Dodo, plaintively, "so shall take the lower berth next to him."