"Not at all! Some one was fooling him!—only he has managed—I'm convinced of that—to regain possession of the green box. As I impressed on you just after the fiasco, there was some one in one of the presses, and now it is evident that Caw captured that person after we had left. Unfortunately, it means that a fourth person has knowledge of the diamonds. Still, my friend, we have another chance."

"What? You don't mean to say—"

"Certainly, we shall try again,—we must! And the sooner the better! That is, unless we find we can settle amicably with the invaluable Caw. His note suggests that possibility, doesn't it? His impertinence gives me encouragement."

"It is the letter," said Lancaster heavily, "of an honest man—"

"Up to the tune of a thousand pounds. A wise man, if you like, who foresaw the possibility of the notes being stopped."

"You would not have dared do that."

"I had already written off my share as a bad debt," said Bullard, with a smile, "but Caw was not to know that."

The older man rested his head upon his hand. "You cannot be certain," he said slowly, "that the green box is still in the house."

"True. Otherwise I'd be tempted to produce Alan Craig's will and finish the business. All the nonsense about the clock and the postponed division could not prevent our taking possession of the house and everything in it. Why, even that absurdly costly clock would be ours…. And yet there's always the risk of—"

"Bullard, let us produce the will and dare the risk of losing the diamonds. From the bottom of my heart I tell you, I will be content with £25,000."