NORTHAMPTONSHIRE, ENGLAND—The remains of four Anglo-Saxon adults and a pottery bowl dating to the sixth century were discovered near the River Ise during the excavation of a new habitat for fish. “The sixth-century date… suggests we’re looking at settlers—people who have come here to establish a small farmstead on very good agricultural land,” said archaeologist Jim Brown. The discovery of the graves had been kept a secret until they could be reburied with twice as much soil in order to protect them.