Who was the discriminating judge who had marked these passages and underlined these letters?  The book was newly published, it was in the Quarry House, and there were three occupants of the Quarry House.  Was it Mr. Mardale?  The mere question raised a laugh.  Resilda?  Never.  Major Lashley then?  If not Major Lashley, who else?

It flashed into his mind that here in this book he might hold the history of the Major’s long courtship of Resilda.  But he dismissed the notion contemptuously.  Gibson Jerkley had told him of that courtship, and of the girl’s reluctance to respond to it.  Besides Resilda was never the woman in this story.  Perhaps the first volume might augment it and give the clue to the woman’s identity.  Sir Charles hunted desperately through the shelves.  Nowhere was the first volume to be found.  He wasted half-an-hour before he understood why.  Of course the other volume would be in the woman’s keeping, and how in the world to discover her?

Things moved very quickly with Sir Charles that afternoon.  He had shut up the volume and laid it on the table, the while he climbed up and down the library steps.  From the top of the steps he glanced about the room in a despairing way, and his eyes lit upon the table.  For the first time he remarked the binding which was of a brown leather.  But all the books on the shelves were bound uniformly in marble boards with a red backing.  He sprang down from the steps with the vigour of a boy, and seizing the book looked in the fly leaf for a name.  There was a name, the name of a bookseller in Leamington, and as he closed the book again, some one rapped upon the door.  Sir Charles opened it and saw Mr. Mardale.  He gave the old gentleman no time to speak.

“Mr. Mardale,” said he, “I am a man of plethoric habits, and must needs take exercise.  Can you lend me a horse?”

Mr. Mardale was disappointed as his manner showed.  He had perhaps at that very moment hit upon a new and most revolutionary invention.  But his manners hindered him from showing more than a trace of the disappointment, and Sir Charles rode out to the bookseller at Leamington, with the volume beneath his coat.

“Can you show me the companion to this?” said he, dumping it down upon the counter.  The bookseller seized upon the volume and fondled it.

“It is not fair,” he cried.  “In any other affair but books, it would be called at once sheer dishonesty.  Here have been my subscribers clamouring for the Memoirs for six months and more.”

“You hire out your books!” cried Sir Charles.

“Give would be the properer word,” grumbled the man.

Sir Charles humbly apologised.

“It was the purest oversight,” said he, “and I will gladly pay double.  But I need the first volume.”

“The first volume, Sir,” replied the bookseller in a mollified voice, “is in the like case with the second.  There has been an oversight.”