Family Ties — A.E. Radley

Sarah Stuart is a no-nonsense woman who finds herself plunged into the middle of a dark conspiracy. A war that rages on in a foreign country had seemed distant until the moment her close friend, a leading scientist, sends her a cryptic message that she can't ignore. Closer to home, a mysterious death leads her to a building in the Surrey countryside which hides a deadly secret. One which may consume her and everyone she knows. As Sarah investigates the goings-on that surround her, she becomes aware that someone close to her is much more than they first appear.