“What is his name?”

“Frank Gilbert. I have known him for years. He is strictly honest and capable. He remained in Boston and saw the twenty cases put into the freight car. He also saw that it was properly closed and sealed. The car was sent on an hour later, for the train was being made up at the time, and it arrived here and was sidetracked in the railway yard early this morning. We were notified by telephone and told that we could take away the goods.”

“What more, Mrs. Waldmere?” Nick inquired.

“Following our instructions, Gilbert already had made arrangements with Macklin & Dale, the express company, to bring the cases to this house,” she continued. “We telephoned to them at once, and were told that they would have a van at the car at ten o’clock. We sent Gilbert there at half past nine with the bill of lading, which the freight agent requires from strangers before he will deliver the goods. Gilbert arrived at the car at precisely ten o’clock. No dray was there.”

“The truckman was late?”

“Something more than that. He was sent, as agreed, but was stopped on his way by a policeman, who claimed to identify him as a crook wanted by the authorities, and who detained him half an hour to question him.”

“H’m, I see,” Nick nodded. “Something more, indeed, Mrs. Waldmere.

“In the meantime, Mr. Carter, another wagon, bearing the firm name of the express company, went to the railway yard. Two men were in charge of it. They presented a forged bill of lading, stating that they had been sent to take away three of the cases, the numbers of which were specified, as soon as possible. One of the yard hands was sent to the car with them, and the cases were delivered to them about twenty minutes before Gilbert arrived. They were the three cases, Mr. Carter, that contained the valuable Waldmere plate.”

“Yes, by Jove, and the bally rascals got away with them,” cried Waldmere, in tones of bitter dismay. “I’ve been jolly well robbed, Mr. Carter, jolly well robbed of——”

“One moment, Waldmere,” said Nick, checking him with a gesture. “Your wife has made this crime perfectly clear to me. Just how it was accomplished is not quite as plain. We must look into it. I infer, Mrs. Waldmere, there is nothing more of importance that you can add.”