Harvest by Jim Crace
In a village somewhere in Medieval Britain the master’s dovecote is burnt to the ground. The day before a hearth fire was sighted where one never was before. Strangers have established a hold in their insulated village. If there is disaster it must be the fault of the strangers, even though most are quite certain that residents were involved. The strangers are punished, not harshly some judge, but misfortune seems to spring from the incident. How did life in this perfect village go so badly so quickly?
A sociological study of the feelings of us and them as well as the motivations and rationalizations of groups rather than individuals this is a quick and interesting read.