The Thunderproof Sky (Sophie Shields #4)

After being tortured to the brink of death, Sophie's carefully built life crumbles to cinders...
 
Cole is there to pick up the broken pieces, but her psyche might be fractured into too many pieces. Scarlett, Snow, Serena, Sibyl and more, are all swirling around inside one damaged mind, and Cole becomes uncertain whether the woman he loves will ever be whole again.
 
The couple decides to leave the USA for the wedding of Helen and Liam Larson (Sophie's biological brother) in Switzerland, and the romantic setting of a chalet in the Alps proves to be a perfect place for rest and recovery. 

When an old friend tries to seduce Cole back into the world of architecture with the challenge to design a tower unlike any other, he refuses to focus on helping Scarlett heal. But when she encourages him to take on the project, and wants to participate, Cole decides it could be wise to start a new life far away from their chaotic past, on the other side of the planet. 

Cole and Scarlett believe they have finally found a place they can call home. But with the truth about the death of Cole's parents out in the open, it turns out that some dangers can follow a person to every corner of the planet, and even the ends of the earth...