The following day, as the clock struck seven, Monsieur Sariette would take up his place in the library, and resume his cataloguing. As he sat at his desk, however, he would dart a Medusa-like look at anyone who entered, fearing lest he should prove to be a book-borrower. It was not merely the magistrates, politicians, and prelates whom he would have liked to turn to stone when they came to ask for the loan of a book with an air of authority bred of their familiarity with the master of the house. He would have done as much to Monsieur Gaétan, the library's benefactor, when he wanted some gay or scandalous old volume wherewith to beguile a wet day in the country. He would have meted out similar treatment to Madame René d'Esparvieu, when she came to look for a book to read to her sick poor in hospital, and even to Monsieur René d'Esparvieu himself, who generally contented himself with the Civil Code and a volume of Dalloz. The borrowing of the smallest book seemed like dragging his heart out. To refuse a volume even to such as had the most incontestable right to it, Monsieur Sariette would invent countless far-fetched or clumsy fibs, and did not even shrink from slandering himself as curator or from casting doubts on his own vigilance by saying that such and such a book was mislaid or lost, when a moment ago he had been gloating over that very volume or pressing it to his bosom. And when ultimately forced to part with a volume he would take it back a score of times from the borrower before he finally relinquished it. He was always in agony lest one of the objects confided to his care should escape him. As the guardian of three hundred and sixty thousand volumes, he had three hundred and sixty thousand reasons for alarm. Sometimes he woke at night bathed in sweat, and uttering a cry of fear, because he had dreamed he had seen a gap on one of the shelves of his bookcases. It seemed to him a monstrous, unheard-of, and most grievous thing that a volume should leave its habitat. This noble rapacity exasperated Monsieur René d'Esparvieu, who, failing to understand the good qualities of his paragon of a librarian, called him an old maniac. Monsieur Sariette knew nought of this injustice, but he would have braved the cruellest misfortune and endured opprobrium and insult to safeguard the integrity of his trust. Thanks to his assiduity, his vigilance and zeal, or, in a word, to his love, the Esparvienne library had not lost so much as a single leaflet under his supervision during the sixteen years which had now rolled by, this ninth of September, 1912. CHAPTER III WHEREIN THE MYSTERY BEGINS