A mysterious time slip to Niagara Falls thrusts Meadow Holloway and her sisters down a curious rabbit hole of mystery, miracles, and murder. From USA Today and Amazon best-selling author Casi McLean comes another heart-pounding time-travel mystery to keep you gripping the edge of your seat. A routine slide to Three Sisters Island spins Meadow to Niagara Falls, where she encounters two men planning to murder a historical icon. To thwart the killers, she opens pandora's box and initiates a stream of time slides swirling the Holloway sisters through history in pursuit of a mysterious time-traveler. Meadow must identify the ominous stalker and discover and why they want to erase from history such an iconic historical visionary. But the clock is ticking. If they fail to unravel the mystery in time, time-travel will cease to exist, leaving the trio stranded in the past forever.