A lighthouse with a hidden past. A mansion with a buried secret. And a mystery that refuses to stay forgotten. The Spectral Sprouts-Oliver, Evie, Jasper, and Luna-are no strangers to the strange happenings in Willow Hollow. But when the town's lighthouse suddenly goes dark, eerie whispers rise from the sea, and long-buried warnings resurface, they realize this mystery is unlike any other. A missing lighthouse keeper. An ancient key. A hidden passage beneath the mansion. Each clue leads them deeper into a secret the town has kept for generations-a secret that was never meant to be uncovered. With time running out and something stirring beneath the waves, the Spectral Sprouts must race to restore the lighthouse's beacon and seal the gate that was unknowingly opened. Because if they fail... The Watchers will rise.
