Once upon a time in a rural English town, an 11-year-old girl named Lettie Hempstock shows a little boy the most marvelous, dangerous, and outrageous things beyond his darkest imagination. But an ancient power has been disturbed, and now invasive creatures from beyond the known world are set loose. There is primal horror here, and menace unleashed - within the boy's family and from the forces that have gathered to consume it. It will take calm, courage, and the cleverness of the extraordinary Hempstock women - Lettie, her mother, and her grandmother, to keep him alive. But his survival will come at an unexpected cost.