"There's nothing to be done but to settle accounts with Mr. Beale," he said grimly. "Do you think he was watched?"
"Oh no, no, Julius"—she checked her sobs—"I was so careful."
She gave him a description of the journey and the precautions she had taken.
"Well, perhaps you're not such a fool after all."
He unlocked a drawer in his desk and took out a long-barrelled Browning pistol, withdrew the magazine from the butt, examined and replaced it, and slipped back the cover.
"Yes, I think I must settle accounts with this gentleman, but I don't want to use this," he added thoughtfully, as he pushed up the safety-catch and dropped the weapon in his pocket; "we might be able to gas him. Anyway, you can do no more good or harm," he said cynically.
She was speechless, her hands, clasped tightly at her breast, covered a damp ball of handkerchief, and her tear-stained face was upturned to his.
"Now, dry your face." He stooped and kissed her lightly on the cheek. "Perhaps what you have done is the best after all. Who knows? Anyway," he said, speaking his thoughts aloud, "Beale knows about the Green Rust and it can't be very long before I have to go to earth, but only for a little time, my Hilda." He smiled, showing his white teeth, but it was not a pleasant smile, "only for a little time, and then," he threw up his arms, "we shall be rich beyond the dreams of Frankfurt."
"You will succeed, I know you will succeed, Julius," she breathed, "if I could only help you! If you would only tell me what you are doing! What is the Green Rust? Is it some wonderful new explosive?"
"Dry your face and go home," he said shortly, "you will find a detective outside the door watching you, but I do not think he will follow you."
He dismissed the girl and followed her after an interval of time, striding boldly past the shadow and gaining the cab-stand in Shaftesbury Avenue without, so far as he could see, being followed. But he dismissed the cab in
