When the Nerd Herd regroups to celebrate Zoey's eighteenth birthday, they notice signs that Neferet might be stirring once again, so the team must overcome their petty differences and join forces in order to stop a rabid group of red vampires.

"It's Zoey's eighteenth birthmas and the Nerd Herd has been scattered across the country busily adulting for almost a year when Stark calls them back to Tulsa to surprise Z. But all is not well in T-Town. Strange, dark signs are appearing--could it be possible Neferet is stirring? Not willing to chance disaster striking again, Zoey calls on her newly reunited friends to circle with her and add a layer of protection over Neferet's grotto jail. Easy-peasy, right? Wrong. Nothing at the House of Night is ever as it seems. With rabid red vampyres closing in, Zoey and the Nerd Herd must come together again and battle evil. But a year is a long time. Have these old friends grown too far apart? When the world fractures and allies become enemies, will darkness devour friendships or will light save those she's loved?"--book jacket