pistons beat loud and steady. The world outside seen through the open end of the shed seemed incredibly dim and remote. It seemed absolutely silent, too, since the riot of the machinery drowned every external sound. Far away was the black fence of the yard with grey shadowy houses behind, and above was the deep blue sky and the pale little stars. Azuma-zi suddenly walked across the centre of the shed above which the leather bands were running, and went into the shadow by the big dynamo. Holroyd heard a click, and the spin of the armature changed.
"What are you dewin' with that switch?" he bawled in surprise. "Han't I told you——"
Then he saw the set expression of Azuma-zi's eyes as the Asiatic came out of the shadow towards him.
In another moment the two men were grappling fiercely in front of the great dynamo.
"You coffee-headed fool!" gasped Holroyd, with a brown hand at his throat. "Keep off those contact rings." In another moment he was tripped and reeling back upon the Lord of the Dynamos. He instinctively loosened his grip upon his antagonist to save himself from the machine.
The messenger, sent in furious haste from the station to find out what had happened in the dynamo shed, met Azuma-zi at the porter's lodge by the gate. Azuma-zi tried to explain something, but the messenger could make nothing of the black's incoherent English, and hurried on to the shed. The machines were all noisily at work, and nothing seemed to be disarranged. There was, however, a queer smell of singed hair. Then he saw an odd-looking crumpled mass clinging to the front
