By this time the sun had set and left the world filled with a luminous yellow afterglow. The estuary of the Thames had widened abruptly off Sheerness, and far to the south was the dim line of chalk cliffs that England thrusts toward France. Overhead stretched a translucent yellow-green sky with the long black line of the Vulcan's smoke marking it.

Leonard moved across the bridge slowly.

There was almost perfect silence over the great structure below him, save for the slow creaking of new joints in the iron plates, the softened chough-choughing of the tug ahead.

There were several paint barrels piled up on the bridge, slung there no doubt by machinery, to prevent the men having to toil up with it from below. The boy leaned against one of these barrels, gazing into the yellow flood of light that bathed everything in its own saffron. His heart beat high with a feeling of the hazard of the ocean. He tried to fancy what would happen to the huge dock as it adventured through tropic seas. His imagination readily conjured up a kaleidoscope of incidents—cannibal proas, shark fights, sea serpents, typhoons, mutinies, what not.

And at every turn of the tug's propeller all this bright dashing world of adventure drew nearer and nearer. For some reason he recalled what the bystander on the dock had said—"Everything is unreasonable at sea," and he laughed aloud.

As a sort of gloomy echo of his laugh, his ear caught a groan from the other side of the paint barrels. With the utmost surprise and curiosity, he straightened up and moved silently around the pile.

Then he saw the tall Englishman leaning across the bridge rail, face in hands, staring at the line of land silhouetted in black between the brazen sky and the reflecting water. Smith's whole attitude was so suggestive of trouble that Madden moved forward in generous sympathy.

The Englishman heard the movement, straightened, looked around; his long face wore a look of suffering in the colored light.

"Sorry you're so blue, old man," sympathized the American, making a guess at the cause of his bad spirits. "Let's have a turn around this old tub and forget homesickness."

"Home!" echoed Caradoc gruffly. "It's—it's all England I'm leaving. It's England and honor and—" he stiffened suddenly and snarled out: "Do you think I climbed away up here on this bridge hunting your company?"