His Chosen Queen by Bella Mason

The royal wedding that nobody saw coming — not even the bride! Bella Mason enthralls with this marriage-of-convenience romance.

The spare has become the heir...and he needs a queen.

Playboy Prince Vasili was never intended for the throne of Thalonia — and never wanted it. When tragedy promotes him to king, palace advisors insist he secures the line of succession. Vasili’s choice of bride is his final act of rebellion...

The palace librarian to marry His Majesty? Ridiculous, thinks Helia Demetriou. She finds solace in books, not ballgowns! Although becoming queen might help those growing up orphaned, as she did...except with their first binding kiss, Helia realises her royal dilemma: she’s wildly attracted to her strictly convenient king.