Queen of Hearts — Martha Brooks

On the prairies of Canada during World War II, a girl and her two young siblings begin a war of their own. Stricken with tuberculosis, they are admitted to a nearby sanatorium. Teenager Marie Claire is headstrong, angry, and full of stubborn pride. In a new strange land of TB exiles she must "chase the cure," seek privacy where there is none, and witness the slow wasting decline of others. But in this moving novel about fighting a way back to normal life, it is the thing that sets back Marie Claire the most -- the demise of her little brother -- that also connects her with the person who will be instrumental in helping her recover.