A LOT CAN CHANGE IN THREE MONTHS: Wars can be decided, nations can be forged . . . or entire species can be brought to the brink of annihilation. The Morningstar virus has swept the face of the planet, infecting billions. Its hosts rampage; its victims don't die, but are reborn as cannibalistic shamblers.

SCATTERED ACROSS THE WORLD, EMBATTLED GROUPS HAVE PERSEVERED. For some, survival is the pinnacle of achievement. Others hoard goods and weapons. And still others leverage power over the remnants of humanity with a mysterious cure. Francis Sherman and Anna Demilio want only a vaccine, but...