After sixteen-year-old Raina learns that she is a perfect match for donating bone marrow to a leukemia patient in Virginia, she discovers that the young woman is the sister she never knew she had.

After her older sister Heather, enthusiastic about changing the world, returns from doing medical missionary work in Uganda, seventeen-year-old Amber feels ignored and confused about her own future and decides to go back to Africa in Heather's place.

Angel of mercy: Eighteen-year-old Heather travels as a volunteer to Africa, where she provides direly needed medical help in Kenya and Uganda and hopes to act as God's hands on Earth. Angel of hope: After her older sister Heather, enthusiastic about changing the world, returns from doing medical missionary work in Uganda, seventeen-year-old Amber feels ignored and confused about her own future and decides to go back to Afri ca in Heather's place....

One year after her leukemia goes into remission, fourteen-year-old Dawn Rochelle's life is threatened again, forcing her to confront for a second time all the fears associated with illness and painful treatment.

Reminded of what life was once like by the opening of a first-grade time capsule, seventeen-year-old Alexis now faces the pressures of senior year in high school, her parents' total focus on work, and the recurrence of her twin brother's leukemia.

When Amy's car accident results in the death of her little sister, she finds it difficult to move on and manage her anger, especially when she is in the presence of a certain boy with whom she is performing in the school musical.