Kerri Maniscalco's 'Throne of Nightmares' Continues Bestseller Streak

Kerri Maniscalco, the #1 New York Times bestselling author, published Throne of Nightmares in February 2026 — a standalone romantasy novel set within her broader Kingdom of the Wicked universe. According to People↗, the book is a standalone installment of Maniscalco's Prince of Sin series, marking a new chapter in a franchise she has built across multiple titles.

The February 2026 release adds a new entry to the Kingdom of the Wicked world without requiring readers to have completed the original trilogy. Barnes & Noble↗ describes the book as an "action-packed standalone fantasy romance" in which a book of dangerous magic draws two readers into a perilous quest — and toward their own happy ending. The novel is currently available through major retailers including Amazon, Barnes & Noble, and Bookshop.org, according to The Nerd Daily↗.

Maniscalco's publisher and Barnes & Noble have both responded to reader demand, with Maniscalco's own website noting that exclusive edition paperbacks↗ are in the works for fans of the Prince of Wrath and Emilia storyline from the original trilogy. Separately, subscription box service Fairy Loot has announced a Throne of Nightmares exclusive edition, priced at £24 GBP / $32 USD plus shipping and expected to ship around June or July 2026↗. The involvement of specialty retail partners points to sustained commercial interest in the title at the point of publication.

Throne of Nightmares arrives as confirmation of a long-running publishing pattern for Maniscalco. As Honi Soit↗ noted in a March 2026 piece, her presence on bestseller lists has persisted well beyond her debut Stalking Jack the Ripper series, and the new book continues that trend. The standalone structure of the Prince of Sin installments gives the series a wider potential readership than a strict sequel format would allow, since each book can function as an entry point for new readers while still rewarding those familiar with the world. For the book's critical verdict, see our review.

The Nerd Daily↗ noted that Throne of Nightmares leaves open the question of which prince will headline the next installment in the series, suggesting the Prince of Sin lineup has further entries to come — though Maniscalco has not yet made a formal announcement. On the retail side, Maniscalco's website↗ is also teasing a UK cover reveal for her forthcoming title Throne of Secrets, indicating the author has multiple projects in motion simultaneously. Readers and booksellers alike will be watching for further series and edition announcements in the months ahead.