Mist

In this middle-grade mystery, thirteen-year-old Nell's carefree birthday celebration turns to panic when her sister Gwen vanishes into a mist-haunted wood. Suspicious of the enigmatic Evan River, whose secret could explain the forest's dark reputation, Nell follows a trail of clues that reveal the old wives' tales about lost children may be true. She must brave the dangerous woods, confront a hidden truth, and rescue her sister before it's too late.