"Don't know, sir. All I know is that they said, they had left safe and were to bring them back if they ever do got back." Of course the surrounding group were listening. Among these was a runty, pockmarked, weasel-eyed little chap who went by the name of Pete, and whom was not much thought of, being considered by those who knew him best to be more than half German by blood. Be this as it may, he now began to edge outward from the group and gradually gravitated towards a side door. However, he was already watched, and by no less a one than Byers' orderly. Ever since the escape of Hans, every one suspected of German connections had been under secret but thorough espionage. When Pete went out at one door the orderly emerged at the other in time to see Pete making for the observation post. "What can the fool want there?" wonder the orderly. In less than a minute he was satisfied for, drawing from his pocket a peculiar flare Pete lighted and sent it up, where it shivered into different colored flashes, doubtless some kind of cheap signal to warn his countrymen that some big was up. Perhaps also a signal for some one to meet Pete somewhere. But the orderly had even less patience than discretion. In two more minutes he had Pete under arrest and bound for the guard house. One of the mechanics aided the orderly and despite Pete's protests, he was shut up for the night. When Byers was told of the matter he first stared, then frowned, and finally laughed, saying: "I forgot that you had only been on duty here for a few days. When I am detained here late, I have Pete or some of the hands send up a certain kind of flare right down to where I live. That warns 'em I won't be back before breakfast. Now trot right back now and let Pete out, sending him to me. He knows this neighborhood where Blaine and Erwin are now. We may need him -and need him bad." Much crestfallen, the orderly obeyed, finding Pete fast asleep in a corner, nor much put out when he found what a mistake had been made. When they reached the gravelly levels near the hangars, two of the largest biplanes in the aerodrome were already drawn up ready. In each of these planes an experienced pilot was in the act of taking his seat. One of these pilots was Byers himself. "Come here, you, Pete!" called the captain, half laughing at Pete's perplexed face. "You in here with me -- see?" "You take me to Boche 'stead of black-hole? I no do harm anyone." Pete spoke in a whining, ingratiating tone, but Byers only laughed, saying: "You are right, Pete. A mistake was made." Then turning to Stanley, who had insisted on coming for final admonitions, "This is my friend Pete, once servant of Baron Savahl. That I know. He is small and light. He will guide us with the assistance that you, Stanley, have given me. Brodno also is particularly well acquainted with that part of the Belgian frontier. Get in, Pete!" "But, Captain, how can we spare you?" This from Stanley anxiously.