The Warning (#1 The Warning) | Kristy Acevedo

Like most high school seniors, Alexandra Lucas is caught between living in the moment and an unknown future. Her anxiety disorder doesn't make that any easier. But she's coping-until her train stops on the way home from a concert with her boyfriend. At first, she's worried about breaking curfew. Then terror echoes through their train car.A mysterious doorway has appeared beside the tracks, and a hologram claiming to be a human from the future shares a sinister warning. A comet is on a collision course with earth. All life there will end in six months' time. To survive, people must step through one of the many portals that have opened around the world.The holograms claim to offer safety. But how can anyone be sure? Stay or go-everyone must make their own choice. Alex's family, her friends, her boyfriend all have different ideas. Alex is only sure of one thing- she wants to decide for herself. But every decision comes at a price.

Acevedo's sci-fi series opener gives a tense, gripping look at the early days of an apocalypse... A heart-pounding cliff-hanger ending will pull readers to the sequel." -- Booklist

KRISTY ACEVEDO loves to write stories that make people think and give people hope. She is a public high school English teacher, gardener, and Star Trek fan. When she was a child, her "big sister" from the Big Brothers Big Sisters Program fostered her love of books by bringing her to the public library every Wednesday for seven years. She lives in Massachusetts with her husband, two daughters, and two cats. Learn more at kristyacevedo.com.