"Jay needed so many things. He needed Maia to be well. He needed a cure for both of them. He needed the world to somehow start making sense again. Above everything, he needed someone to tell him why these terrible things were happening to him." Seventeen-year-old Jay Harris lives in a London struck down by a deadly virus. His parents are dead, along with half the world. When Jay's sister Maia falls ill, he must find a cure before he loses her, too. But unbeknownst to Maia, Jay is also sick... and he's running out of time to save them both.