Thomas Chandler possessed a clear, retentive memory by nature, and he had done nothing to cloud it. After his master, Lawyer Paul--soon to be no longer his master, but his partner--had gone out with Mr. Preen to make inquiries at the post-office for the missing letter, he sat down to bring his memory into exercise. Carrying his thoughts back to the Wednesday afternoon, some ten days ago, when the letter ought to have been delivered at Mr. Paul's office, and was not--at least, so far as could be traced at present--he had little difficulty in recalling its chief events, one remembered incident leading up to another. Then he passed into the front room, and spoke for some minutes with Michael Hanborough, a steady little man of middle age, who had been with Mr. Paul over twenty years. There was one clerk under him, Tite Batley (full name Titus), and there had been young Richard MacEveril. The disappearance of the latter had caused the office to be busy just now, Michael Hanborough especially so. He was in the room alone when Mr. Chandler entered. "You have not gone to tea yet, Mr. Hanborough!" "No, sir. I wanted to finish this deed, first. Batley's gone to his." "Look here, Hanborough, I want to ask you a question or two. That deed's in no particular hurry, for I am sure Mr. Paul will not be ready to send it off to-day," continued Mr. Chandler. "There's going to be a fuss over that letter of Preen's, which appears to have been unaccountably lost. I have been carrying my thoughts back to the Wednesday afternoon when it ought to have been delivered here, and I want you to do the same. Try and recollect anything and everything you can, connected with that afternoon." "But, Mr. Chandler, the letter could not have been delivered here; Mr. Paul says so," reasoned Michael Hanborough, turning from his desk while he spoke and leaning his elbow upon it. His desk stood between the window and the door which opened from the passage; the window being at his right hand as he sat. Opposite, beside the other window, was Mr. Chandler's desk. A larger desk, used by MacEveril and young Batley, crossed the lower end of the room, facing the window; and near it was the narrow door that opened to Mr. Paul's room. Thomas Chandler remained talking with Hanborough until he saw the lawyer and Mr. Preen return, when he joined them in the other room. They mentioned their failure at the post-office, and he then related to them what he had been able to recall. Wednesday afternoon, the sixteenth of June, had been distinguished in Mr. Paul's office by a little breeze raised by Richard MacEveril. Suddenly looking up from his writing, he disturbed Mr. Chandler, who was busy at his desk, by saying he expected to have holiday on the morrow for the whole day. Hanborough was just then in Mr. Paul's room; Batley was out. Batley had been sent to execute a commission at a distance, and would not be back till evening.