"There he is!" came softly from Munson.

An amphibian had just been disintegrated, had just climbed mistily, swiftly, into invisibility in the skies. And there in the midst of the conquerors left behind, his angel's face set in a moody mask, his pale eyes awful with fear, his misshapen body sagging, terrible in its realization of failure, was Moyen!

Even as Kleig prepared to give the mercy signal, a plane dived down on the group about Moyen, and the Secret Agents could see the hand of the pilot, lifted high, as though he signaled.

The plane was a Mayther! The pilot was Carlos Kane!


Just as Kane went into action, and the noiseless bullets from his ship crashed into that twisted body, causing it to jump and twitch with the might of them, Prester Kleig gave the signal.

Even as the figure of Moyen crashed to the soil and the man's soul quitted its mortal casement, Kleig commanded:

"Spare all who surrender! Make them prisoners, to be used to repair the damage they have done to our country! Guards will be instantly placed over the amphibians and the aero-subs—for the day may come when we shall need to know their secrets!"

And, as men, hands lifted high in token of surrender, quitted the now motionless amphibians, and flyers dropped down to make them prisoners, Maniel sighed, pressed various buttons on his apparatus, and the mad scene of carnage they had witnessed for hours faded slowly out, and darkness and silence filled the Secret Room.

But darkness is the joy of lovers, and in the midst of silence that was almost appalling by contrast, Kleig and Charmion were received into each other's arms.