The Twins by Saskia Sarginson

They were inseparable until an innocent mistake tore them apart. Growing up, Viola and Issy clung to each other in the wake of their mother's eccentricity, as she dragged them from a commune to a tiny Welsh village. They thought the three of them would be together forever.

But an innocent mistake one summer set them on drastically different paths. Now in their twenties, Issy is trying to hold together a life as a magazine art director, while Viola is slowly destroying herself, consumed with guilt over the events they unknowingly set into motion as children.
 
USED