The room fronted the west, but a black cloud, barred with red, robbed the hour of twilight's tranquil charm. Shadows haunted it, lurking in corners like spies set there to watch the man who stood among them mute and motionless as if himself a shadow. His eye turned often to the window with a glance both vigilant and eager, yet saw nothing but a tropical luxuriance of foliage scarcely stirred by the sultry air heavy with odors that seemed to oppress not refresh.