33 Books With Shocking Plot Twists That Still Keep Us Up at Night

Speaking of The Fault in Our Stars, My Sister's Keeper is another gut-wrenching tale about a young girl with cancer named Kate who longs for a normal life. Her little sister, Anna, was conceived by their parents specifically to be a bone marrow match for Kate and has since undergone countless transfusions, shots, and surgeries all in the hopes of helping her sister beat leukemia. Anna finally puts her foot down and sues her parents for medical emancipation, leading to a string of events that no one could have ever predicted (not even you, potential reader).