Scott was well aware that the statements made by the coachman had deepened suspicion against himself.  He paid little attention to the crowd, however, but noted particularly the faces of the guests at Fair Oaks.  Ralph Mainwaring’s, dark with anger; that of the genial Mr. Thornton coldly averted; young Mainwaring’s supercilious stare, and his sister’s expression of contemptuous disdain; and as he studied their features his own grew immobile as marble.  Suddenly his glance encountered Miss Carleton’s face and was held for a moment as though under a spell.  There was no weak sentimentality there, no pity or sympathy, — he would have scorned either, — but the perfect confidence shining in her eyes called forth a quick response from his own, though not a muscle stirred about the sternly-set mouth.  She saw and understood, and, as her eyes fell, a smile, inexplicable and mysterious, flashed for an instant across her face and was gone.

“John Wilson,” announced the coroner, after a slight pause.

A middle-aged man, rather dull in appearance, except for a pair of keenly observant eyes, stepped forward with slow precision.

“You are Mr. Ralph Mainwaring’s valet, I believe?” said the coroner.

“That I am, sir,” was the reply.

“Have you been for some time in his employ?”

The man peered sharply at Dr. Westlake from under his heavy brows, and replied, with great deliberation, “Nigh onto thirty years, sir.”

Then, noting the surprise in his interlocutor’s face, he added, with dignity, “The Wilsons, sir, have served the Mainwarings for three generations.  My father, sir, was valet to the father of the dead Hugh Mainwaring, the Honorable Ralph Maxwell Mainwaring, sir.”

A smile played over the features of young Mainwaring at these words, but Scott started involuntarily, and, after studying Wilson’s face intently for a moment, hastily pencilled a few words on a slip of paper which he handed to Mr. Sutherland, and both watched the witness with special interest.

His testimony differed little from that given by Hardy and by the butler.  He stated, however, that, after accompanying Mr. Ralph Mainwaring to the scene of the murder, the latter sent him to summon Mr. Scott; but on his way to the young gentleman’s room he saw Mr. Whitney in advance of him, who called the secretary and immediately returned with him to the library.

“Was Mr. Scott already up when Mr. Whitney called him?” the coroner inquired, quickly.

“He was up and dressed, sir,” was the reply.

Wilson also corroborated the butler’s statement that Walter LaGrange was not seen about the premises until luncheon, and stated, in addition, that the horse belonging to young LaGrange was missing from the stables until nearly noon.  Having mingled very little with the servants at Fair Oaks, he had but slight knowledge concerning the occurrences of the day preceding the murder.  His testimony was therefore very brief.