XVI - MR. HILL'S STORY –––––––– ALLEN WAS so thunderstruck at the sight of his father, who had so unexpectedly appeared, that he could only stand silently staring. Mr. Hill gave a nervous titter, and tried to appear at his ease. But the sight of his pale face and trembling limbs shewed that the man was possessed by terror. Also he locked the door while Allen gaped. It was Mask who spoke first. "You are surprised to find your father as my clerk," he said smoothly to Allen; "but when he came to me asking to be concealed, I arranged that Johnstone should take a much-needed holiday at the sea-side. I believe he is at Brighton," said Mr. Mask deliberately. "In the meantime, your father, by means of a clever disguise, adopted Johnstone's name, and personality, and looks. In the dim light of t

