“Nobody knew it was there,” said Riley in a statement published by the auction house. “It was just a run-of-the-mill bookcase, containing the usual reading and reference books you’d expect to find. It was clearly an early Hobbit at first glance, so I just pulled it out and began to flick through it, never expecting it to be a true first edition.”

An "astonishingly rare" first edition of The Hobbit has sold for a "record-breaking" £43,000 at auction. The copy of JRR Tolkien's novel is one of only 1,500 copies that were printed in 1937. It was discovered without a dustcover on a bookcase during a home clearance in Bristol.