There are 2 books in the Betting Against the Duke series.
The Betting Against the Duke series does not have a new book coming out soon. The latest book, A Wager at Midnight (Book 2), was published in March 2025.
The first book in the Betting Against the Duke series, A Gamble at Sunset, was published in May 2024.
The Betting Against the Duke series primarily falls into the Historical Romance genre.