Lord Trevor and Nan Tremain, his ward, were prominent figures in London society, and were really among the most prominent of the diplomatic agents of the government. Usually Trevor did most of the work, but in one particular instance Nan proved her ability to handle a problem single-handed, and from that time on ranked equally with Trevor, the famous "Diplomatic Free Lance." On the street back of Trevor's home was a house supposedly occupied by a wealthy East Indian, Abdul, who was in reality Trevor's body servant. The two houses were connected by a tunnel, through which visitors to Trevor could secretly make their way without being spied upon from the outside. On one occasion a well-dressed woman was injured in an accident outside of Abdul's home and was carried into his house to be attended to. While she raved in delirium, Abdul learned enough to satisfy him that she was a spy under orders to assist Col. Pfaff, the Kaiser's chief representative in London. She spoke constantly of her...
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