Hal Overton had reached the door leading into the lieutenant's office and pulled it open.
Just as he did so he heard a rather familiar voice behind him demand:
"Where's the officer in charge?"
"In that office," replied one of the soldiers, pointing.
The newcomer did not stop to thank the soldier, but sprang toward the door that Hal had just opened.
"Here, you kids can stand aside until a man gets through with his business in there," exclaimed Tip Branders, gripping Hal by the shoulders and swinging him aside.