Lord Thomas sets out hoping to make amends for a wrong that he did not commit, even though it is rumored that he had a hand in the ambush that killed his friend and fellow officer. He has apologized to the other soldiers’ families and now he is at the last one, his friend's family home. Things don’t go as expected when he is introduced to not one but two sisters. Melisande is the one he knew about and was hoping to marry as part of his atonement. But he didn’t know about Caroline.
Caroline doesn’t understand why Melisande will not listen to Lord Thomas and why she is rude to him. Caroline is soft hearted and listens and tries to be just like Melisande but she has a feeling the Lord Thomas didn’t have anything to do with her brother's death. Can Caroline help Thomas with his request without losing her heart to him?
Lord Thomas is trying to get in the good graces of Melisande and has asked Caroline for her help. But can Caroline help him without revealing that she likes him and is attracted to him. Can Thomas get over his feelings for Melisande that started by listening to her brother read him her letters? He is wondering how the person he has met could be the same person who wrote those letters.
Ms. Garland gives us a story that has a few twists and turns in it but is a little predictable as well. It seems that whenever a hero asked the sister or friend for help in getting the “love” of their life, they end up realizing the love of their life is the person helping them. There is also the mystery surrounding the ambush as well as another mystery or two surrounding them. While there are a number of characters, only a few played any significant role in the story. All in all The Unexpected Sister was a good story and I will be giving Ms. Garland another try.