Ella had, an hour before, told him a very remarkable story.

At first, so extraordinary and improbable had it sounded, that he had been inclined to pooh-pooh the whole affair, but now, amid the clatter and bustle of that cosmopolitan restaurant, the same to-day as in the mid-Victorian days, he began to realise that the impression left upon his well-beloved, by the knowledge she had obtained, had been a distinctly sinister one.

“Well, dearest,” he said, again leaning across the little table-à-deux, “I’ll go into the matter at once if you wish it, and we’ll watch and wait.”

“Yes, do, Seymour,” exclaimed the girl anxiously. “I’ll help you. There is a deeply-laid plot in progress. Of that I’m quite certain—more especially because Ortmann came to see dad yesterday morning and went to see him again to-day.”

“You overheard some of their conversation—eh?”

“I did,” was her open response. “And for that reason I am so full of fear.”

At nine o’clock that same night, in accordance with an appointment, Ella Drost stood upon the whitewashed kerb in Belgrave Square, at the corner of West Halkin Street.

Darkness had already fallen. The London streets were gloomy because of the lighting order, and hardly a light showed from any house in the Square.

For fully ten minutes she waited until, at last, from out of Belgrave Place, a car came slowly along, and pulled up at the spot where she stood.

In a moment Ella had mounted beside her lover who, next second, moved off in the direction of Knightsbridge.