"I understand he claims the property as next-of-kin," said the constable; "but he hasn't been near the place, so I don't suppose he expects to be much richer for his uncle's death."

Quarles and I went through the village to Parrish's house, which was the most important in the street, but was of no great size. The room in which the dead man had been found was lined with books, and, with some excitement manifest in his face, Quarles took several volumes from the shelves and examined them.

"Value here, Wigan. The old gentleman knew what he was buying. These shelves represent a lot of money, even if he had no other investments. Have you the list of the books Hall was recommended to keep?"

I had. There were eighteen books in all, such classics as "Lamb's Essays," "Reynold's Discourses," and "Pope's Homer." We found only ten of them, and careful search convinced us that the others were not on the shelves.

"If you are looking for a cryptogram—a key to the hiding place of a fortune—the missing books spoil it," I said.

"I confess that something of the kind was in my mind," said Quarks excitedly, "but the missing books are going to help us. The old gentleman had not read these books himself. See, Wigan, uncut pages; at least"—he took out a penknife—"not uncut, but carefully gummed together. I hadn't thought of this."

He slit the pages apart, and from between them took a ten-pound note. Other pages, when unfastened, yielded other notes—five pounds, twenty pounds, and one was for fifty pounds.

"Enough, Wigan!" he exclaimed. "We've something better to do than find bank-notes. You must see the constable at once, and tell him there is treasure in this house which requires special protection. Then communicate with the Birmingham police, and tell them not to lose sight of Charles Eade, and let them also have a description of Mrs. Ashworth. I expect she is lying low in Birmingham."

"I don't follow your line of reasoning, professor."

"I had no very definite theory beyond thinking that Mr. Parrish must be a man of considerable means," said Quarles. "That fact once established, we had a motive for the murder, which did not seem applicable to Michael Hall. It was said that nothing beyond the salver was missing. Only Mrs. Ashworth could establish that fact. You remember Zena's question: 'How was it, since people were such early risers in Thornfield, that Mrs. Ashworth had to wait so long before anyone came?' There was one obvious answer. She was up much earlier than usual that morning, perhaps had not been to bed that night. The constable had said that the village was not awake. Again, it was Mrs. Ashworth who gave information about the nephew in Birmingham. It is possible Parrish may have mentioned him to his housekeeper, but, since she had only been with him a year, and the old gentleman held no communication with his nephew, it is unlikely. Once more, the housekeeper was a little too definite about the time. She had a story to tell. The precision might be the result of careful rehearsal. These points were in my mind from the first, but they were too slight for evidence. Now the missing volumes give us the link we want. Who could have taken them? Either Mrs. Ashworth, or someone with her connivance. I don't think it was Mrs. Ashworth. I believe it was the man who murdered Mr. Parrish."