"How so?"
"Eltham has never seen Dr. Fu-Manchu, but Eltham knows certain parts of China better than you know the Strand. Probably, if he saw Fu-Manchu, he would recognize him for whom he really is, and this, it seems, the Doctor is anxious to avoid."
We ran back to where we had left Kâramanèh.
The room was empty!
"Defeated, Petrie!" said Smith bitterly. "The Yellow Devil is loosed on London again!"
He leant from the window and the skirl of a police whistle split the stillness of the night.
CHAPTER IV
THE CRY OF A NIGHTHAWK
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