A Rogue Walks into a Ball by Emily Greenwood

Having done her time among the wallflowers at society’s balls, Sarah Porter doesn’t feel resigned to her spinster fate — she feels liberated. What need does a woman of twenty-five with a nice allowance have for a husband who might curtail her wish to do exactly as she pleases? It’s not that she dislikes men, and in fact, she’s come to London for the Season to help her young cousin find a husband. But all those years of standing at the edges of the dance floor have given Sarah a dim view of the handsome, careless men whose eyes always passed over her, and in short, she has no patience for rogues.

Lord Jack Hallaway is one of society’s golden boys. The younger brother of the Marquess of Boxhaven, he’s beguiling enough to charm the birds out of the trees, and just the kind of man Sarah would never let near her cousin. But Sarah’s efforts to steer her cousin away from Jack don’t go at all as planned, and she finds herself embroiled with him in an unlikely scheme. The last thing she wants to do is trust a man who represents everything that ever made her miserable, but will this rogue’s kiss reveal that Sarah is no longer mistress of her own heart?