Which Harry Potter novel was the last of J.K. Rowling’s seven main books?

Harry Potter and the Deathly Hallows was the last of J.K. Rowling’s seven main Harry Potter novels.

Bloomsbury published the book in the United Kingdom on 21 July 2007. It concludes Harry’s conflict with Lord Voldemort and follows Harry, Ron, and Hermione as they search for the remaining Horcruxes rather than returning to a normal school year at Hogwarts.

The title refers to three legendary magical objects: the Elder Wand, the Resurrection Stone, and the Cloak of Invisibility. Their history is told through the story of the three brothers, which becomes important to the novel’s themes and plot.

The previous book, Harry Potter and the Half-Blood Prince, ends with Albus Dumbledore’s death and leaves the central conflict unresolved. The Deathly Hallows therefore serves as the series finale, although Rowling later expanded the wizarding world through companion works and other projects.