内容简介：
Peter Brent sat nervously smoking in the library of his great house, Brent Rock. He was a man of about forty-five or-six-a typical, shrewd business man. Something, however, was evidently on his mind, for, though he tried to conceal it, he lacked the self-assurance that was habitually his before the world. A scowl clouded his face as the door of the library was flung open and he heard voices in the hall. A tall, spare, long-haired man forced his way in, crushing his soft black hat in his hands.