Bestselling author Rebecca Yarros is set to debut a new romance book, "Peculiar Stars," which follows a woman stranded for 543 days on a deserted island. The book will be about Callista Moran and her fiancé’s cousin, an ex-army medic, who find love when their world is stripped away. The novel is scheduled to be published by Amazon Publishing's romance imprint Montlake in 2026. This follows Yarros' alternating pattern of publishing new installments of her popular “Fourth Wing” books with standalone contemporary novels. The announcement comes more than a year after the publication of “Onyx Storm” in 2025.