"Why?" There was an amused twinkle in Brett's eyes, which might have warned the other of a possible pitfall.
"Because you treat me as if I were a precocious youth. You listen to my theories with a sort of pitying indulgence, yet I have the reputation of being one of the best men in Scotland Yard, or I should not have been put on this job. And I am older than you, too."
"I may surely pity you," said Brett, "even if I don't indulge you too much."
"There you go again," snapped the detective. "Now, what is there silly about my theory of the crime, I should like to know."
"You shall know, and before you are much older. Bear with me for a little while, I beg of you. You may be right, and I may be quite wrong, but I think there is much beneath the surface in the investigations we are now pursuing. My advice to you is to drop all preconceived theories, to note every circumstance, however remote it may appear in its bearing upon events, and in any case not to act precipitately. Whatever you do, don't arrest anybody."
"But," said the other, somewhat mollified by Brett's earnestness, "half a dozen people may be arrested at any moment."
"Pray tell me how?"
"Descriptions of the stolen diamonds and of the suspected persons are in every police office in Great Britain and in most Continental centres by this time. Passengers by all steamers are most carefully scrutinised. Every pawnbroker and diamond merchant in the country is on the look-out, and, generally speaking, it will be odd if somebody does not drop into the net before many hours have passed."
"It will, indeed," murmured Brett; "and no doubt the somebody in question will experience a certain amount of inconvenience before he proves to you that he had nothing whatever to do with the matter. Now, don't answer me, Winter, but ponder seriously over this question: Do you really think that the intelligence which planned and successfully carried through an operation of such magnitude will be trapped by plain-clothes constables watching the gangways of steamships, or by any pawnbroker who has ever lent half the value of a pledge?"