"You'll have to leave that decision to good old Jack," chuckled Hal
Hastings. "He's out there, dogging Millard from the rear. It's Jack
Benson's affair just at this moment."
It was mighty hard for Eph to refrain from looking back. But he restrained his curiosity.
CHAPTER VI
FLANK MOVEMENT AND REAR ATTACK
When Jack Benson first touched the sidewalk, and the automobile glided on, leaving him in the wake of Millard, it was the young submarine captain's intention to follow his instructions to the letter.
Millard, having no especial reason of his own for feeling in danger, was walking along at a moderate gait, occasionally glancing into shop windows or gazing at the people whom he passed.
He did not look behind, so it was easy for Jack, less than half a block to the rear, and keeping close to the buildings, to follow without being detected.
"Hullo," muttered the submarine boy. "There's a policeman on the crossing at the next corner. In another moment our long-legged one will be safely in custody."
Feeling in his inner coat pocket for the written authorization, Benson's fingers touched the envelope.
"He's easily caught;" murmured the boy.