Danielle Steel 
Mirror Image 
The moving historical tale of love, family and conflicting destiny from the bestselling author Danielle Steel

To look at one was to see the other…
The twins Olivia and Victoria Henderson, two remarkable young women coming of age at the turn of the century, held a bond that was mysterious, marvelous, and often playful–a secret realm only they inhabited.
Following their mother”s death, Olivia took over the role in their lush New York estate, managing not only the household but also her rebellious twin”s flights of fancy. Free-spirited Victoria wanted to change the world, but when her life was about to descend into public scandal her father intervenes.
Handsome lawyer Charles Dawson is hand-picked to save Victoria”s reputation. But in an act of deception that only Olivia and Victoria could manage, the twins took an irrevocable step, which changed both their lives forever…

From Manhattan society to the trenches of war-ravaged France, Mirror Image moves elegantly and dramatically through a rich and troubled era, portraying the contrasting destinies of two vastly different sisters…