Christmas at Blackhaven Castle by Sophia James
In disguise, penniless Lady Seraphina Moreton seeks sanctuary at the Duke of Blackhaven's castle just days before Christmas. Trey swore never again to be beguiled by a beautiful face, but as governess Seraphina gets close to his unruly, motherless children, he wants the festive joy she brings to stay well beyond Christmas Day….

Governess to Christmas Bride by Annie Burrows
Lord Chepstow hasn’t seen Honeysuckle Miller since she was a plain, awkward schoolgirl. Now she’s not so plain and is looking after his host’s children at a lavish Christmas house party. Only one thing about her hasn’t changed. Her annoying habit of looking down her nose at him, though she reaches no higher than his shoulder. It becomes his mission to melt her. But then he finds that just one kiss under the mistletoe isn’t enough…

Duchess by Christmas by Marguerite Kaye
Masquerading as a governess to help the brooding Duke of Blairmore find a wife is not how Regan Stuart expected to spend Christmas! Then he steals an unexpected kiss, endangering Regan's heart…unless Gabriel can see beyond her dowdy costume and realize she's his perfect Christmas bride!