Family, sacrifice, and a story that will tear your heart. Nine-year-old Reign Howard didn’t understand what a bone marrow transplant was. But at the start of the coronavirus pandemic, her younger brother Messiah desperately needed one. After a year-long search, she had become the only option — and when the call came to help him, she didn't doubt it for a second. In this moving story, John Woodrow Cox ventures into the Howards' quest to save Messiah whilst exploring the remarkable bond between the brother and sister.