The International Spy - Allen Upward - Bog

"Look!" A fair, delicately-molded hand, on which glittered gems worth a raja's loyalty, was extended in the direction of the sea. Half a mile out, where the light ripples melted away into a blue and white haze upon the water, a small black smudge, like the back of a porpoise, seemed to be sliding along the surface. But it was not a porpoise, for out of it there rose a thin, black shaft, scarcely higher than a flag-staff, and from the top of this thin shaft there trickled a faint wreathing line of smoke, just visible against the background of sky and sea. "It is a submarine! What is it doing there?" The exclamation, followed by the question, came from the second, perhaps the fairer, of two women of gracious and beautiful presence, who were pacing, arm linked in arm, along a marble terrace overlooking a famous northern strait.