Excerpts:A strange shape had suddenly materialized on the screen—an immense, oval-shaped thing of dull metal, with great curving cuts of glass-like substance in its blunt bow, like staring eyes; a lifeless, staring thing, stretching far into the curtain of gloom behind. How long it was, Keith could not tell; at first his numb brain refused to grasp it and reduce it to definite, sane standards of size and length. The cold weeds of the sea-floor kelp beds swayed eerily over and around it. From its bow, he saw, peculiar knobs jutted, the function of which he guessed with dread.
Was it waiting with a purpose? Was it waiting—and inviting attack?
A frightened whisper from Hemmy Bowman broke the hush:
"Keith, the thing has ports, but shows no lights! What kind of creatures can they be?"
As he spoke, the three men in the control room felt the unmistakable, jarring tingle of an electric shock. And while their nerves still jumped, it came again; and again. They were conscious of a slight feeling of drowsiness.