A Double Masquerade by Elizabeth Johns
Arthur, Lord Claremont finds himself unexpectedly in need of an heir, but loathes the idea of putting himself publicly on the Marriage Mart. When a masquerade provides the opportunity to survey the crop of eligible ladies whilst in disguise, he cannot resist. Phoebe Cartwright was forced to live with her aunt during her mourning for her father. Unfortunately, it was during the Season when her cousin was to make her debut. Fearing competition, her aunt tries to keep her hidden away. However, when her cousin becomes ill, Phoebe finds herself pretending to be her cousin at a masquerade. Arthur finds his ideal bride at the masquerade, but appearances can be deceiving.

Their Masked Secret by Jen Geigle Johnson
A duke’s ultimatum carries power. James Holbrook and his fellow lords in London have one more ball before they must tow the line and find wives, wealthy wives—One more chance to be frivolous, to flirt, to outrageously flaunt themselves about without a care until the dawn when they can never do so again. With masks on, everything will be done in complete anonymity. And even though James has reservations about such a jaunt, he agrees to at least keep the others’ secrets.

Meredith attends the ball with great trepidation. How will she see through the duplicity of the marriage mart and find a man sincere enough to marry her for who she is? She doesn’t expect to. And she doesn’t expect to fall for one at her first ball, without even knowing his name. How will the two navigate the ensuing weeks of secrets, misunderstandings and prejudice to eventually fall in love without their masks on?

Masquerade A-la-Mode by Annette Lyon
When Charles Ballam returns from war, his former commander, Doughty, is determined to see him happily wed—the least he can do after Charles maimed his hand saving his life. The first attempt leads to a humiliating spectacle involving Charles’s injury. He’s loath to ever attend a ball again. Doughty convinces him to try a relatively new, scandalous method: lonely hearts advertisements.

Mr. Amesbury doesn’t approve of such things, but that doesn’t stop his daughter Clarissa or her companion, Mary, from reading them secretly and then strolling past meeting places in hopes of finding the individuals mentioned in them. When an advertisement with striking details appears, Clarissa is certain that the man behind it is one she could have a love match with. She answers, suggesting they meet at an upcoming masquerade. But identities aren’t what they seem, and her future happiness—or spinsterhood—may rest on the man who placed the advertisement . . . or on his mate, who assumes his identity. Instead of being the man of her dreams, he may be nothing more than a deception.