Mark was a college friend of Darry and Burd, but he was likewise a very good friend of the Roselawn girls and he had reason for being. As related in a previous volume, "The Radio Girls on the Program," Jessie and Amy had found a watch Mark had lost, and as it was a valuable watch and had been given him by his grandmother, Mark was very grateful.
Through his influence—to a degree—Jessie and Amy had got on the program at the Stratfordtown broadcasting station. And now Jessie had talked with the young man and arranged for a surprise by radio that was to come off that very evening at "bedtime story hour."
Henrietta and little Sally and Bob and Fred Stanley, as well as some of the other children of the bungalow colony, crowded into the house at that time to "listen in" on the Roselawn girls' instrument.
The amplifier worked all right that evening, and Jessie was very glad. The little folks arranged themselves on the chairs and settees with some little confusion while Jessie tuned the set to the Stratfordtown length of wave. There was some static, but after a little that disappeared and they waited for the announcement from the faraway station.
By and by, as Henrietta whispered, the radio began to "buzz." "Now we'll get it!" cried the little Dogtown girl. "I hope it is about the little boy with the rabbit ears that he could wiggle."
"S-sh!" commanded Jessie, making a gesture for silence.
And then out of the air came a deep voice:
"We have with us this evening, children, the Radio Man, who, just like Santa Claus, knows all our little shortcomings, as well as our virtues. Have you all been good boys and girls to-day? Don't all say 'Yes' at once. Better stop and think about it before you speak.
"Before the bedtime story," went on the voice out of the horn, "the Radio Man must tell some of you that you must take care, or you will get on the black list. Here is a little girl, for instance, who may be rich when she grows up. But she must have a care. People who grow up rich and own islands must be very nice."