"Optimism is the first duty of the altruist." What in thunder had that to do with the effects of the bicycle? And what beastly rot it was. One might as well state that to be comfortable is the first duty of the damned. "Optimism is the first duty of the altruist." He wrote on with the feeling that he was existing as an automaton, that while his hand was executing the result of some reflex action, his thinking entity was in the still room behind the closed door. But with the absence of personality his senses were rendered doubly acute, and he seemed to see the rhythm of the atmospheric waves about him, while his ears were responsive to every sound in the night without--hearing them, not in a confused discord, but in distinct differentiation of note and key. Once his gaze encountered the grinning skull above the mantel, and, to his giddy senses, it seemed to wink with its hollow sockets. He found himself idly wondering if the skull had caught the trick of winking from its former accompaniment of flesh, and was forced to pull his thoughts together with a jerk. Then there came one of those sudden attacks of vertigo to which he had become subject, and he laid aside his pen and closed his eyes. "Too much caffeine," he muttered. But when it passed he went on again. As the day broke he finished his articles, placed them in envelopes, stamped and addressed them, and rose to his feet. He blew out the lamp, and the faint odor of heated oil caused him a sensation of nausea. Crossing to the window, he raised the shade and stood inhaling the insipidity of atmosphere which is the city imitation of the freshness of a country morning. Without, a sombre, neutral-toned light flooded the almost deserted streets. In the highest heaven a star was still visible, and the vaguest herald of dawn flaunted itself beyond the chimney-pots. As he lifted the shade he noticed that his hand trembled and that his head was unusually light. That massive sense of loneliness which the transition hour from darkness to day begets in the on-looker oppressed him with the force of an estrangement of hope. Such an impression had been produced upon him a hundred times by the breaking of dawn after a sleepless night. He turned away and opened the door softly. The night-lamp was still burning, but the beginning of the morrow washed with a faint grayness the atmosphere. The objects he had dwelt upon the night before were magnified in size, and in an instant the unpacked trunks, the rubber doll, and the bottles of medicine obtruded themselves upon his vision. Mariana was still sitting as he had left her, waving to and fro the palm-leaf fan. He wondered vaguely if she had sat thus since midnight. Then he laid his hand upon her shoulder. "Mariana, you must lie down." And as he stooped nearer he saw that the child was dead. CHAPTER XVIII