Locke, handing his gun to Eva, determined to investigate further.  He went to the inner door and listened.  But he could hear no sound.  He turned the knob and entered.  He was amazed at what he saw.  But, as there was apparently no living thing about, he took courage and entered farther.  He took note of the switches, saw the deadly chair, and was about to test the apparatus to see if it could be possible that a practical electric chair existed in the heart of a peaceful city, when he heard Eva shriek in heart-rending terror.

He rushed madly back to where he had left her.  But as he passed through the door some one dealt him a blow on the head, and as though pole-axed he dropped to the floor.

After Locke had left her to go into the inner room Eva’s fears revived and she wished to follow him.  But she was ashamed to have him think her a coward.  She forced herself to remain rooted to the spot.

Her eyes had followed Locke through the doorway and her ears were strained to hear the faintest sound from the other room.  In her anxiety about Locke’s safety she even forgot the Automaton, and, in turning the better to watch the doorway, she drew nearer to the divan upon which the monster lay.

It was this action that had brought her into peril.  Slowly one of the monster’s arms commenced to move, and before Eva could spring away she was enfolded in his deadly embrace.  It was that that made her shriek madly, wildly, in utter terror.

Then she saw Locke running through the door to her, saw him struck from behind, and she fainted.

The Automaton, evidently thinking Eva dead, let her limp body slip to the floor.  For a moment it towered over her, as though contemplating whether to trample on her or no.  At this juncture an emissary distracted its attention and the terror left her lying there without further injury.

The Automaton now assumed command of Locke’s electrocution.

Under its direction the emissaries picked up Locke’s body and placed it in the electric chair.  They slit his trousers so that the deadly electrodes might form a better contact with his flesh.  His sleeves were rolled back for the same reason.  Next the headpiece was firmly adjusted.  Now all the straps were tightly clinched.

The Automaton waved his arm.

A man stepped to the switch.

CHAPTER XV

There was a moan from the front room.  Eva was recovering from her faint.  The Automaton indicated to the emissary at the switch to do nothing until he had found out what was going on.

Locke had, meanwhile, recovered consciousness and realized his awful position.  Here was a situation which, on its face, seemed unescapable.  Yet Locke would not give in.

Straining every effort, he tried to extricate himself before the deadly current could sever the thread of life.  Seconds seemed ages.  Still he tried.