Prince Shan stood in the tiny sitting room of his suite upon the Black Dragon and looked around him critically. The walls were of black oak, with white inlaid plaques on which a great artist had traced little fanciful figures,—a quaint Chinese landscape, a temple, a flower-hung pagoda. There were hangings of soft, blue silk tapestry, brought from one of his northern palaces. The cloth which covered the table was of the finest silk. There were several bowls of flowers, a couch, and two comfortable chairs. Through the open doors of the two bedchambers came a faint glimpse of snow-white linen, a perfume reminiscent at once of almond blossom, green tea, and crushed lavender, and in the little room beyond glistened a silver bath. Already attired for the voyage, his pilot stood on the threshold.

"Is all well, your Highness?" he asked.

"Everything is in order," Prince Shan replied. "Ching Su is a perfect steward."

"The reverend gentleman is in his room, your Highness," the pilot went on. "All the supplies have arrived, and the crew are at their stations. At what hour will it please your Highness to start?"

Prince Shan looked through the open window, along the wooden platform, out to the broad stretch of road which led to London.

"I announced the hour of my departure as six o'clock," he replied. "I cannot leave before in case of any farewell message. Is the woman of whom I spoke to you here?"

"She is in attendance, your Highness."

"She understands that she will not be required unless my other passenger should desire to accompany us?"

"She understands perfectly, your Highness."

Prince Shan stepped through his private exit on to the narrow wooden platform. Already the mighty engines had started, purring softly but deeply, like the deep-throated murmurings of a giant soon to break into a roar. It was a light, silvery morning, with hidden sunshine everywhere. On the other side of the vast amphitheatre of flat, cinder-covered ground, the Downs crept upwards, rolling away to the blue-capped summit of a distant range of hills. Northwards, the pall of London darkened the horizon. An untidy medley of houses and factories stretched almost to the gates of the vast air terminus. Listening intently, one could catch the faint roar of the city's awakening traffic, punctuated here and there by the shrill whistling of tugs in the river, hidden from sight by a shroud of ghostly mist. The dock on which Prince Shan stood was one apportioned to foreign royalty and visitors of note. A hundred yards away, the Madrid boat was on the point of starting, her whistles already blowing, and her engines commencing to beat. Presently the great machinery which assisted her flight from the ground commenced its sullen roar. There was a chorus of farewell shouts and she glided up into the air, a long row of people waving farewells from the windows. Prince Shan glanced at his watch,—twenty minutes to six. He paced the wooden boards and looked again,—ten minutes to six. Then he stopped suddenly. Along that gleaming stretch of private road came a car, driven at a rapid pace. Prince Shan stood and watched it, and as he watched, it seemed almost as though the hidden sun had caught his face and transfigured it. He stood as might stand a man who feels his feet upon the clouds. His lips trembled. There was no one there to see—his attendants stood respectfully in the background—but in his eyes was a rare moisture, and for a single moment a little choking at his throat. The car turned in under the arched roof. Prince Shan's servants, obeying his gesture, hurried forward and threw open the gates. The heavily laden limousine came to a standstill. Three people descended. Nigel and Naida lingered, watching the luggage being unloaded. Maggie came forward alone.