A Naughty Proposal for His Winter Countess by Ava MacAdams

A little naughty never hurt anyone…
Sick and tired of being a wallflower all her life, Miss Harriet Bradford is determined to be the naughtiest she has ever been this Christmas. However, she has a big problem: she knows nothing about seduction.
It takes great effort to convince Daniel Raster, the Earl of Barkley, to attend any kind of celebration. Broken beyond repair ever since his betrothed left him at the altar, he has spent his days wasting away in the most notorious dens of London. Until the discovery of a very tantalizing letter sets his whole being on fire.
Torn between his honor and his own desire for her, they strike up a deal: he will save her from ruination by being the one to teach her with no strings attached. Trapped in a web of budding love and old lies, Harriet and Daniel’s happiness turns to ashes in their mouths when Daniel disappears on their wedding day. For secrets hide in the hand that writes.