Boz

Boz got his job on the colony ship The Beautiful Dreamer because he's a competent introvert. He enjoys the fact that he's spending years completely alone, monitoring the passengers passing the time in cold sleep. So when he wakes up one morning to Christmas carols, he gets scared. Very scared. Who has joined him on the ship? And why torture him with Christmas cookies and mugs of hot cocoa? He needs to find out, and soon.