The Earl's Yuletide Surprise: A Sweet and Clean Regency Christmas Romance (The Joy of Christmas Trilogy #3)
Kelly Anne Bruce

Cassandra Abbott's station in life has changed. She's fallen from a daughter in a wealthy family to a penniless woman who needs a job to help her father and take care of herself. Lucky for her, Elizabeth Corbett needs a lady's companion. Cassandra is knowledgeable and well-read. She's perfect for the job.
When Dawson first sees his sister's companion, he is taken by her beauty and eventually falls in love with her wit and sweet spirit. Sadly, Cassandra Abbott may not be what she's put forth that she is. Will the news of her family history be the truth that sends her out of Branston Manor and out of the earl's life? Will the Christmas celebrations be ruined by Cassandra's departure from the household?