The centuries-spanning adventures of the League of Extraordinary Gentlemen will come to an end next summer in The Tempest, by Alan Moore and Kevin O'Neill.

Announced today at Comic-Con International in San Diego by Top Shelf Productions, the fourth and final volume of the series promises to tie up "the slenderest of plot threads and allusions from the three preceding volumes, The Black Dossier, and the Nemo trilogy into a dazzling and ingenious bow."

“This is the absolute final one,” O’Neill told The New York Times. “We’re having a ball with it. I’ve never heard Alan happier.”

Debuting in 1999, The League of Extraordinary Gentlemen brought together popular characters from Victorian literature -- Allan Quatermain, Mina Murray, Dr. Henry Jekyll, the Invisible Man and Captain Nemo -- to protect the British Empire. The 2002 sequel essentially retold H.G. Wells' The War of the Worlds, while the 2007 graphic novel The Black Dossier was released as a series sourcebook, moving beyond the 19th-century setting to explore the past, and the future, of the League.

According to Top Shelf, the six-issue Tempest opens "simultaneously in the panic-stricken headquarters of British Military Intelligence, the fabled Ayesha’s lost African city of Kor and the domed citadel of ‘We’ on the devastated Earth of the year 2996":

... [T]he dense and yet furiously paced narrative hurtles like an express locomotive across the fictional globe from Lincoln Island to modern America to the Blazing World; from the Jacobean antiquity of Prospero’s Men to the superhero-inundated pastures of the present to the unimaginable reaches of a shimmering science-fiction future. With a cast-list that includes many of the most iconic figures from literature and pop culture, and a tempo that conveys the terrible momentum of inevitable events, this is literally and literarily the story to end all stories.

The League of Extraordinary Gentlemen, Vol. IV: The Tempest debuts in June 2018 from Top Shelf.