"It's part of my business," replied Entwistle gravely. "That is the matter on which I wish to speak to you, and since Mr. Kirkwood is 'in the know' up to a certain point I do not see any reason why he should not be admitted into our conference. First of all, let me say that for the present I must get you to promise not to say a word to your father, or in fact to any one concerning what I am about to divulge." The two officers gave the required promise.
"It concerns Andrew Norton," continued Entwistle. "He is a secret agent of the German Government. On the night of the Barborough raid he had planned to have your parent made prisoner by the crew of the Zeppelin. Unfortunately for him his plans went adrift, and, as a result, he himself was kidnapped and taken to Germany."
"How on earth do y
