The Eyre Affair, written by Jasper Fforde, is a delightful alternative history mystery that takes place in a world where literature is taken very seriously. The story follows Thursday Next, a literary detective, as she investigates the theft of the original manuscript of Jane Eyre. As Thursday delves deeper into the case, she discovers a plot that could alter the course of classic literature forever. Fforde's witty writing style and imaginative world-building make this book a must-read for book lovers and mystery enthusiasts.