As A.G. Mojtabai's Thirst opens, Lena has been summoned to the bedside of her ailing "brother" Theo, an aging country priest who has started to refuse food and drink. What Lena faces is complicated by the fact that she left the faith long ago. First cousins and closest childhood friends, Theo and Lena were raised in a small Catholic farming community in Texas, named for the village their parents left behind in...