An Amazon Best Book of November 2019: In Blue Moon, Lee Child turns the saying “No good deed goes unpunished” on its ear. Reacher helps an elderly man in a spot of trouble (his good deed) but when it turns out the man was on his way to make his weekly payment to a loan shark, it’s the Albanian street gang holding the ledger which ends up taking the punishment. And if Reacher has to ignite a turf war between rival gangs in order to mete out that punishment, well, why should he try to solve just one problem when he might neatly square away two? It’s not much of a spoiler to reveal such a plot point