Feast of Fools - Bridget Bridget Crowley

People say that John is lucky to be taken in by the choir school. But it's hard to be grateful for the cold and the hunger, the bullying and punishments. But John's friendship with another chorister, Hugh, makes life seem a little less bleak. And the Feast of Fools is coming - a festival and procession culminating in a great banquet. For one day of the festival, a chorister is chosen to be the Boy Bishop, performing the clergy's duties in the cathedral. This year, it is Hugh.

But sinister forces are at work and, on the night of the feast, a canon is found murdered. Then Hugh disappears. Only John, the outsider, dares to probe the dark heart of the cathedral to discover the truth . . .