This library had long been a thorn in Mr Norrell’s side. It was one of the most important private libraries in the kingdom – second only to Mr Norrell’s own. It had a curious, poignant history. Some fifty years before, the Duke of Roxburghe, a most intelligent, civilized and respectable gentleman, had chanced to fall in love with the Queen’s sister and had applied to the King for permission to marry her. For various reasons to do with court etiquette, form and precedence the King had refused. Heartbroken, the Duke and the Queen’s sister made a solemn promise to love each other for ever and never upon any inducement to marry any one else. Whether the Queen’s sister kept her side of the bargain I do not know, but the Duke retired to his castle in the Scottish borders and, to fill his lonely days, he began to collect rare books: exquisite illuminated mediaeval manuscripts and editions of the very first printed books produced in the workshops of men of such genius as William Caxton of London and Valdarfer of Venice. By the early years of the century the Duke’s library was one of the wonders of the world. His Grace was fond of poetry, chivalry, history and theology. He had no particular interest in magic, but all old books delighted him and it would have been very odd if one or two magical texts had not found their way into his library.

Mr Norrell had written to the Duke a number of times begging to be allowed to examine and perhaps purchase any books of magic which the Duke possessed. The Duke, however, felt no inclination to satisfy Mr Norrell’s curiosity and, being immensely wealthy, he did not want Mr Norrell’s money. Having been true to his promise to the Queen’s sister through many a long year, the Duke had no children and no obvious heir. When he died a large number of his male relatives were seized by a strong conviction that they were the next Duke of Roxburghe. These gentlemen took their claims before the Committee of Privileges of the House of Lords. The Committee considered and came to the conclusion that the new Duke was either Major-General Ker or Sir James Innes, but as to which of them it might be the Committee was not quite certain and it settled itself to consider the matter further. By early 1811 it had still not come to a decision.

On a cold, wet Tuesday morning Mr Norrell was seated with Mr Lascelles and Mr Drawlight in the library at Hanover-square. Childermass was also in the room, writing letters to various Government departments upon Mr Norrell’s behalf. Strange had gone to Twickenham with Mrs Strange to visit a friend.

Lascelles and Drawlight were speaking of the lawsuit between Ker and Innes. One or two seemingly random allusions upon Lascelles’s part to the famous library caught Mr Norrell’s attention.

“What do we know of these men?” he asked Lascelles. “Have they any interest in the practice of magic?”