This was voted a good idea, and Ned related how, when his father’s department store was opened in the morning, it was discovered that the safe had been blown open, and the money and jewelry stolen. In addition the thieves had carried off some solid silver tableware, and a few rolls of valuable silk.

“How did they get in?” asked Bob.

“That’s the funny part of it,” replied Ned. “There’s no trace of anything being forced, not a door or window is disturbed, as far as we can learn.”

“That’s where you’re wrong,” said Andy calmly. “That’s where my clue comes in. I know how they entered.”

“Then why didn’t you tell the police about it?” demanded Ned somewhat indignantly.

“Because no one asked me to,” answered Andy. “I wanted to tell you, but I couldn’t find you so I came here, as I thought you’d be starting on the trip.”

“Well, you can tell me now, Andy,” remarked Ned.

“I can explain it better if we go up to the store,” Andy answered. “I want to show you just how it was.”

“We might as well go there,” came from Jerry. “We will not undertake the trip to-day. To-morrow or next day will do as well. Besides, maybe we can help your father, Ned.”

“I don’t want to spoil your fun,” interposed Ned. “But I’ve got to stay home for a few days anyhow. You could go on without me.”