<p>Louis Roubien has much to be thankful for. Now an old man, the head of a large family, his many hard years of work on the land have transformed him from a peasant farmer into a prosperous and satisfied freeholder, distributing his largesse among his relatives and the local community. But with success has come hubris, and when the rains, hitherto a harbinger of plenty, come, and the banks of the River Garonne swell and burst, Roubien sees every...