The constable looked as if he could not quite make out how such a mistake could have arisen, hesitated, then, with another salute, he moved away.
The stranger was still holding his watch in his hand.
"Only eight minutes," he said.
The Duke seemed to experience some difficulty in giving utterance to what he had to say.
"If I give you this five hundred pounds, you--you----"
As the Duke paused, as if at a loss for language which was strong enough to convey his meaning, the stranger laughed.
"Let us take the adjectives for granted. Besides, it is only boys who call each other names--men do things. If you give me the five hundred sovereigns, which you have in that bag, at once--in five minutes it will be too late--I will promise--I will not swear; if you do not credit my simple promise, you will not believe my solemn affirmation--I will promise that, possibly within an hour, certainly within an hour and a half, the Duchess of Datchet shall return to you absolutely uninjured--except, of course, as you are already aware, with regard to a few of the hairs of her head. I will promise this on the understanding that you do not yourself attempt to see where I go, and that you will allow no one else to do so." This with a glance at Ivor Dacre. "I shall know at once if I am followed. If you entertain any such intentions, you had better, on all accounts, remain in possession of your five hundred pounds."
The Duke eyed him very grimly:
"I entertain no such intentions--until the Duchess returns."
Again the stranger indulged in that musical little laugh of his: