Fire will fall

"Moved to a mansion in the South Jersey Pine Barrens, four teenagers, trying to recover from being poisoned by terrorists, struggle with health issues, personal demons, and supernatural events, as operatives try to track down the terror cell."@en
"ShadowStrike poisoned the water of Trinity Falls two months ago. Now the Trinity Four, the teens most affected by the poison, have been isolated in a remote mansion under twenty-four-hour medical care while scientists on four continents rush to discover a cure. Meanwhile, U.S. operatives scour the world for the bioterrorists responsible for this heinous crime as two teen virtual spies, also infected, hunt for the criminals on the Internet ..."@en
"Two months after ShadowStrike poisoned the water of Trinity Falls, the surviving teens, known as the Trinity Four, are isolated in a secluded mansion under medical supervision. As doctors race to find a cure, the U.S. government is scouring the world in search of the terrorists responsible."
"Whatever you do, don't drink the water. When Cora Holman's mother dies, she assumes the inevitable: that her mother overdosed on the painkillers she'd been taking for years. So she's shocked to learn that her mother and a neighbor both died of a brain aneurysm the same night. When Cora and other neighborhood teens become ill with a mysterious flu, and government-type strangers arrive in her small town, they all fear the unthinkable?a terrorist attack ..."@en