Y: The Last Man Book FourIn 2002, the world changes forever. Every man, every boy, every mammal with a Y chromosome everywhere on Earth suddenly collapses and dies. With the loss of nearly half the planet's population, the gears of society grind to a halt, and a world of women are left to pick up the pieces and try to keep civilization from collapsing entirely. The "gendercide," however, is not absolutely complete. For some unknown reason, one young man named Yorick Brown and