Brothers Mo and Aaron go to the mall to meet Santa, who turns out to be more than they expected: a Doctor at the local hospital. He asks Mo and Aaron to help out there. Reluctantly they except. At the hospital they meet many other children who are sick, including one boy from India and a very angry girl who wears a paper bag on her head.
It's a short book; sadly, too short. I didn't want it to end, especially once I saw where the ending was going. A book to get you in the mood to be more giving with yourself.