"Oh my poor Lucille!" said Cain unexpectedly.

The words were like a parrot's speech, the intonation so remarkable a copy of old Parrish's that Jim was flabbergasted. Nevertheless it was evident that Cain knew he was referring to Lucille.

With a strange, slinking motion he crossed the laboratory and bent beneath a huge slab of stone, resting on two great hewn rocks. He emerged, holding in his arms two curious contrivances. He laid them at Jim's feet.

Jim stared at them, and suddenly understood what they were. They were two pairs of wings, of the kind the Atlanteans had used when they made their aerial sortie against the Drilgoes.

Cain picked up one pair and began adjusting it about his body. He made fluttering movements with his arms.

"You mean that you've learned how to fly, you black imp of Satan?" shouted Jim.

And Cain, as if understanding, nodded and beamed all over his black face.

With that Jim's idea was born. If the Drilgoes would follow him, he would lead them against Atlantis. And, before the assault began, he would fly to the great Eye that guarded it, and blind it.