Life after the zombie apocalypse is pretty good for 13-year-old Jack Sullivan: he lives in a mind-clobberingly cool tree fort with his best friends, speeds through town playing Real-Life Mario Kart, has a crew of monster buddies, battles zombies on the regular, and generally treats life like it’s a videogame!   But then Jack’s friends make a startling discovery: they may not be the last kids on earth, after all. This is great news for everyone… except Jack. Once they’ve found other humans, his friends won’t stick around for long! Jack’s only hope for keeping things the way they are is to prove that everything here is perfect, life is crazy fun, and nothing else could be any better.