Lucan by Carole Mortimer

Eight years ago Rachel Ford was put into the Witness Protection programme after her parents were killed and her sister later died in a car crash.
Her name isn’t her own.
England isn’t her birthplace.
The only people she has in her life even remotely close to calling family is the couple, friends of her mother, who fostered her until she was eighteen.
At least, that’s what Rachel has always believed…
When Lucan Steele is tasked with protecting Rachel Ford, an art historian working in a London museum, he decides the best way to do that is to take her to a safe house until the danger has passed.
Turns out Rachel isn’t the staid historian Lucan had been expecting.
Instead she’s beautiful, fiery and sensual, and exactly the sort of unpredictable woman Lucan doesn’t need in his life after his years in the military left him scarred, both inside and out. So much so that Lucan doesn’t believe any woman could ever accept the things he did in his past.
But as Lucan quickly discovers, Rachel isn’t like other women, and the heated attraction between the two of them becomes too intense for either of them to deny any longer.
But Lucan’s past, whether or not the two of them could ever have a future together, might not matter when Rachel learns what really happened eight years ago…