The distorted remains of Holroyd, which the electrician removed from the machine, were hastily covered by the porter with a coffee-stained tablecloth.  Somebody, by a happy inspiration, fetched a medical man.  The expert was chiefly anxious to get the machine at work again, for seven or eight trains had stopped midway in the stuffy tunnels of the electric railway.  Azuma-zi, answering or misunderstanding the questions of the people who had by authority or impudence come into the shed, was presently sent back to the stoke-hole by the scientific manager.  Of course a crowd collected outside the gates of the yard—­a crowd, for no known reason, always hovers for a day or two near the scene of a sudden death in London; two or three reporters percolated somehow into the engine-shed, and one even got to Azuma-zi; but the scientific expert cleared them out again, being himself an amateur journalist.

Presently the body was carried away, and public interest departed with it.  Azuma-zi remained very quietly at his furnace, seeing over and over again in the coals a figure that wriggled violently and became still.  An hour after the murder, to anyone coming into the shed it would have looked exactly as if nothing had ever happened there.  Peeping presently from his engine-room the black saw the Lord Dynamo spin and whirl beside his little brothers, and the driving wheels were beating round, and the steam in the pistons went thud, thud, exactly as it had been earlier in the evening.  After all, from the mechanical point of view, it had been a most insignificant incident—­the mere temporary deflection of a current.  But now the slender form and slender shadow of the scientific manager replaced the sturdy outline of Holroyd travelling up and down the lane of light upon the vibrating floor under the straps between the engines and the dynamos.

“Have I not served my Lord?” said Azuma-zi inaudibly, from his shadow, and the note of the great dynamo rang out full and clear.  As he looked at the big whirling mechanism the strange fascination of it that had been a little in abeyance since Holroyd’s death, resumed its sway.

Never had Azuma-zi seen a man killed so swiftly and pitilessly.  The big humming machine had slain its victim without wavering for a second from its steady beating.  It was indeed a mighty god.

The unconscious scientific manager stood with his back to him, scribbling on a piece of paper.  His shadow lay at the foot of the monster.

“Was the Lord Dynamo still hungry?  His servant was ready.”

Azuma-zi made a stealthy step forward; then stopped.  The scientific manager suddenly stopped writing, and walked down the shed to the endmost of the dynamos, and began to examine the brushes.

Azuma-zi hesitated, and then slipped across noiselessly into shadow by the switch.  There he waited.  Presently the manager’s footsteps could be heard returning.  He stopped in his old position, unconscious of the stoker crouching ten feet away from him.  Then the big dynamo suddenly fizzled, and in another moment Azuma-zi had sprung out of the darkness upon him.