The boys waited. They had met the train expecting to greet their father, Fenton Hardy, the nationally famous detective, who had been away from home for the past two weeks on a murder case in New York. It appeared that they were to be disappointed. When the last of the Bayport passengers had left the train Fenton Hardy was not among them. "We'll come back and meet the local," said Frank at last. The brothers were about to turn away and retrace their steps down the platform when they saw a tall, well-dressed stranger swing himself down from the steps of the nearest coach. He was a man of about thirty, dark and clean-shaven, and he hastened over toward them. "I want to pay a fellow a dollar out of this five," remarked the stranger, as he came up to the boys. "Can you change the bill?" At the same time he produced a five dollar bill from his pocket and held it out inquiringly. He was a pleasant-spoken young man and he was evidently in a hurry. "I could try the lunch room, I suppose, but there's such a crowd that I'll have trouble being waited on," he explained, the bill fluttering in his hands. Frank looked at his brother and began feeling in his pockets. "I've got three dollars, Joe. How about you?" Joe dug up the loose change in his possession. There was a dollar bill, a fifty-cent piece and three quarters. "Two dollars and a quarter," he announced. "I guess we can make it." He handed over two dollars to Frank, who added it to the three dollars of his own and gave the money to the stranger, who gave Frank the five dollar bill in exchange. "Thanks, ever so much," said the young man. "You've saved me a lot of trouble. My friend is getting off at this station and I wanted to give him the dollar before he left. Thanks." "Don't mention it," replied Frank carelessly, putting the bill in his pocket. "We'll get it changed between us." The young man nodded, smiled at them and hastened back up the steps of the coach, with a carefree wave of his hand. "I'm glad we were able to help him out," observed Joe. "It was just by chance that I had that small change too. Mother gave me some money to buy some pie-plates." "Pie-plates!" exclaimed Frank, with a grin. "There's nothing I'd rather see coming into the house than more pie-plates. More pie-plates mean more pie." "We might as well go down and get them now, before I forget. There's a shop down the street and we can get the plates and get this five dollar bill changed. It'll help kill time before the local comes in." The two lads went down the platform, out through the station to the main street of Bayport, basking in the summer sunlight. They were healthy, normal American boys of high school age. Frank, being a year older than his brother, was slightly taller. He was slim and dark, while his brother was somewhat stouter of build, with fair, curly hair. As they strolled down the street they received and returned many greetings, for both boys were well-known and popular in Bayport.