Lost Christmas

Eleven-year-old Goose is lost. It's Christmas, his parents are dead and now his dog Mutt has gone missing. Those around him aren't doing much better: his Uncle Frank's wife has walked out on him and his nan is long her mind. But then Anthony appears - a man whoseems to know everyone's secrets but nothing at all about himself. Who is he, how does he know so much, and can he help Goose?