"You keep quiet, or I'll run you in," replied, one of the policemen, and the old man lost no time in slinking out of sight.
"Can we go in?" asked Frank, and told who he was.
"I'll send in word and see," answered the policeman at the door.
"Oh, Frank!" came from the main office, and Senator Harrington beckoned to his son; and all four of the boys went in.
They found half a dozen men present, including the members of the firm, a detective, and the bookkeeper, a young man named Fredericks.
"You are the only one who had the combination besides ourselves, Fredericks," Charles Rush was saying to the bookkeeper. "I hate to suspect you, but—"
"Mr. Rush, you can't think I took that money and those securities!" gasped the bookkeeper, and fell back as if about to faint.
"I don't know what to think."
"I can give you my word I was not near the offices from four o'clock yesterday afternoon until I came this morning, after you."
"Have you spoken of the safe combination to anybody?"