"Surely you are reading too much into this," exclaimed Caldew in a protesting voice. "Nepcote's story seems to me quite consistent with what we know of his movements. Miss Heredith, when giving us the names of the guests who had been staying at the moat-house, mentioned that Captain Nepcote had been recalled to France on the afternoon of the murder by a telegram from the War Office. Nepcote tells you that when he reached London he found another telegram awaiting him extending his leave. Surely that is consistent?"
"Is it consistent that the two telegrams were sent to different addresses? They would have been either both sent to the moat-house, or both sent to his London flat—that is, if they were sent by the War Office. Only a relative or a personal friend would take the trouble to send to different addresses. There lies the weak point of Nepcote's statement."
"By Jove, there is a point in that," said Caldew, in a startled tone. "But these are facts which can be ascertained," he added, as though seeking to reassure himself.
"They can be ascertained too late. I have already set inquiries on foot, but it takes some time to gain any information about official telegrams. Nepcote has plenty of time to take advantage of Merrington's blunder, if there is any occasion for him to do so. No matter what his explanation is, the fact remains that he was in England, and not in France, on the night the murder was committed, and I propose to find out how he spent the time. But it is of the first importance to find out what has become of the missing necklace, which is the really important clue. Is Scotland Yard making any investigations about it?"
"Yes. Merrington has put me on to that because I let you score the point over him of discovering that it was missing. I am sure that he hopes I will fall down over the job of tracing it. I shouldn't be surprised if I did, too. It's no easy thing to get on the track of missing jewellery, especially if it has been hidden. I have not even got a description of the necklace to help me."
"I can give you a description, and perhaps help you in the work of tracing it."
"Can you? That's awfully good of you." Caldew's face showed that he meant his words. "Have you any idea where it is?"
"I have at least something to guide me in commencing the search—something, which, curiously enough, I owe to Merrington's blunder in visiting Nepcote before he looked for the necklace. We will go across to Hatton Garden, and I will put my idea to the test."