Thursday Next is the protagonist in a series of comic fantasy, alternate history mystery novels by the British author Jasper Fforde. She was first introduced in Fforde's first published novel, The Eyre Affair, released on 19 July 2001 by Hodder & Stoughton. As of 2012[update], the series comprises seven books, in two series. The first series is made up of the novels The Eyre Affair, Lost in a Good Book, The Well of Lost Plots and Something Rotten. The second series is so far made up of First Among Sequels, One of Our Thursdays Is Missing and The Woman Who Died a Lot.
Thursday is the daughter of Wednesday Next and Colonel Next (whose first name has not yet been revealed), a former agent with Special Operations Network department 12 (SO-12), the Chronoguard. She has two brothers, Anton and Joffy. Anton, however, was killed in the Crimean War.