The Crowfield curse - Pat Walsh

It's 1347 and fifteen-year-old Will, an orphan boy, lives at Crowfield
Abbey. Sent into the forest to gather wood, he rescues instead,
a creature from a trap - a hob, who shares with Will a terrible
secret. Somewhere in the forest behind the abbey where he lives,is
a grave. And buried deep in the snow is an angel. But how can
an angel die? What has it to do with the monks of the Abbey? When
two hooded strangers arrive at Crowfield asking questions about
the angel's grave. Will is drawn into a world of dangerous Old
Magic. The Crowfield Feather was short-listed for the Times Children's
Fiction Competition in 2008. This is a stunning debut novel
and the first of a two part series.