I'm sorry to disagree so strongly with the other review posted here for "The Outlaw Viking", but I feel it has been misrepresented by someone who did not fully understand the book.
As far as the story goes, it is quite an enertaining plot: Raine Jordan, a skilled 20th century surgeon, is sent back in time to the Battle of Brunanburh in 978 A.D. by a blow to the head. She is taken hostage by Selik, an outlaw who has killed King Aethelstan's cousin in the Battle. Selik's adversary, Steven of Gravely, another of King Aethelstan's cousins, is never far behind them, and Raine is caught in a maelstrom of revenge, love and hate.
The hero Selik is a well-drawn character: his deliberate rudeness and testiness are merely a front to protect himself from feeling anything after having gone through a great deal of suffering at the hands of his enemies and after having lost nearly all he cared about, which is one of the reasons why he dislikes children and the painful memories associated with them.
And now he has his mind diverted by Raine, who breezes into his life and turns it upside down by making him feel again. Raine is a mouthy, cheeky lady from our time who is just as arrogant as Selik in that she thinks she knows everything better than these heathen barbarians she has landed with. During the journey across the country, the two constantly come into conflict, employing hilarious dialogue and comic as well as sensual innuendo. That the two are made for eachother is as clear as daylight, as they both struggle to rid themselves of their inner demons.
I enjoyed "The Outlaw Viking" immensely, and it had me laughing out loud at the funny banter. I would definitely recommend this book if you're interested in time travel romances with a large humorous element!