he earth trembled with the explosion that followed. A gas—some new compound that united with water to give volumes tremendous—that only could explain it. The ocean rose from its depths and flung wave after wave to race outward in circles of death.

Hundreds of feet in height at their source—this could only be estimated—they were devastating when they struck. The ocean raged over the frail bulwark of England in wave upon wave, and, retreating, the waters left smooth, shining rock where cities had been. The stone and steel of their buildings was scattered far over the desolate land or drawn in the suction of retreating waters to the sea.

Ireland, too, and France and Spain. Even the coast of America felt the shock of the explosion and was swept by tidal waves of huge proportions. But the coast of Britain took the blow at its worst.

The world was stunned and waiting—waiting!—when the next blow fell. The flashes were coming from Venus at regular intervals, just twenty hours and nineteen minutes apart. And with exactly the same time intervals the bolts arrived from space to lay waste the earth.

They struck where they would: the ocean again; the Sahara; in the mountains of China; the Pacific was thrown into fearful convulsions; the wheat fields of Canada trembled and vanished before a blast of flaming gas....

Twenty hours and nineteen minutes! Where it would strike, the next star-shell, no man might say; that it surely would come was a deadly and nerve-shattering certainty. The earth waited and prayed under actual bombardment.