Book 1 in the Grim Reaper trilogy!
Dan's just like any other person out in the world. Except he's a Reaper, someone who decides whether or not a person should die. He's had this job for as long as he remembers, and is never bothered by what he does. But when he is sent to judge Phil Lester, his life becomes harder and he has to decide between his feelings for the boy and his role in the world.