Jingo and Sourcery, Terry Pratchett

Jingo and Sourcery, Terry Pratchett. Commander Vimes and the Ankh-Morpork Watch dabble in international diplomacy, submarine-ing, and, er, military tactics in Jingo. Rincewind and the Luggage save the world again in Sourcery. I've been saving these since Christmas (thank you Maddo) for stressful situations. Combined with a half-dozen Dorothy Sayers mysteries they contained enough fun to get me through a small patch of anxiety and grinding drudgery.