This announcement relieved the feelings of all. Herr Doodlebrod was indeed coming down. But he had his ship under perfect control, as shown by the manner in which he steered it in a half circle so as to return to the place from which he had started. In a few minutes he allowed it to come to a stop on the ground, in the midst of the throng, where it alighted as gently as a bird. "Vot I tell you?" he asked of Dick, triumphantly. "I could haf stayed longer, but my engine he vill not stand it. Ven ve gets der new motor--den ve two vill sail in der clouds." "I guess you'll have to excuse me from the first trip," objected Dick, with a smile. "I want to see it tried first." "It iss as safe as on der ground. Vait, I vill show you. But now, are you satisfied?" "Yes," replied Dick. "I'm willing to invest five hundred dollars in a new motor. Then we'll see how she works." "Und den ve vin der grand prize," announced the German. "But I haf much to do. Ven can you spare der money?" "As soon as you want it. Perhaps you had better come back to town with me and we can talk it over with my father." The airship was taken to a big barn near the scene of the test and some workmen left in charge to guard it from the curious crowd that gathered. Herr Doodlebrod was as calm and collected as though flying was an every-day accomplishment of his, but Dick was quite excited over what had taken place. Not only did he see the conditions of his mother's will fulfilled, but he was glad of the opportunity of taking part in helping to solve the problem of aerial navigation. Mr. Hamilton was informed of the test and its success. A form of agreement was drawn up to protect the interests of all parties, and Dick gave Herr Doodlebrod a check for five hundred dollars, taking a mortgage on the machine as security, a proposition the inventor himself suggested. "Now I go to New York for der engine," he announced. Three days later a letter arrived from the German. He said he was having some difficulties in getting the engine made, but expected to be back at Hamilton Corners in a week. "You'll have to hustle, Dick, to win that prize before the year expires," said his father, with a smile. "Aren't you getting anxious?" "A little, but I guess it will all come out right. It won't take long to install the engine once we get it." At the end of the week the German arrived with the engine. He was enthusiastic over it, and declared the government prize was already his. He had communicated with a representative of the War Department, who promised to be on hand when the test was made, to see if Herr Doodlebrod's machine answered the requirements. "But haf no fears," boasted the inventor to Dick. "It vill, und ve vill reap der reward." "I hope so," answered Dick. "I haven't much time left."