JIM BUTCHER DRESDEN FILES WAR CRY (2014)

"Giant-Sized Conclusion! Harry Dresden and his Wardens are beaten, exhausted, and vastly outnumbered. But a supernatural weapon of mass-destruction has been unleashed - and it doesn't distinguish between wizard and vampire, Red Court or White Court, Venatori or Civilian! Can Harry and his half-brother Thomas accomplish the impossible and contain the otherworldly beast before it devours thousands, while simultaneously battling the bloodthirsty Red Court? Their long night is almost over - but a new and darker one may just be starting "

"A surprise ally has appeared, offering Harry and his beleaguered team salvation. Unfortunately, Baron Bravosa and his army of Red Court vampires have an ace up their collective sleeve--one that puts Dresden and co. at an even more severe disadvantage. With hours still to go till sunrise, Harry will be forced to make a decision that could win them the battle -- but lose the war..."