Harvest - Tess Gerritsen (Thistle No. 486)

Dr Abby DiMatteo is about to make a decision that will jeopardize her career. A car-crash victim's healthy heart is allocated to a private patient, 46 year-old Nina Voss.

Instead, Abby makes sure the transplant goes to a dying boy who is also a perfect match. Suddenly, a new heart appears, and the transplant is completed. Abby makes a terrible discovery. The new heart has not come through the right channels. Defying the hospital, Abby investigates and reveals an intricate and murderous chain of deceptions... 

SEB - 6 Volumes