While in a coma following an automobile accident that killed her parents and younger brother, seventeen-year-old Mia, a gifted cellist, weighs whether to live with her grief or join her family in death.

A dog is desperate to get a message to his owner in the hospital, but he cannot get inside. He asks a cat to deliver it to the little boy and thus begins a long chain of creatures great and even microscopic trying to get word to the boy. This book even introduces children to the concept of antibodies and microbes.

"Sixteen-year-old Sadie is lucky to survive an accident, but it changes her world forever when it reveals her secret life and the mysterious, thrilling boy at the center of it"--