17 - Bobbsey Twins on a Houseboat by Laura Lee Hope

Join the adventurous Bobbsey family as they embark on a summer vacation aboard a charming houseboat! Everything starts off perfectly, filled with fishing trips, games with friends, and river explorations. But trouble brews when a grumpy farmer appears, intent on ruining their fun. What secrets lie behind his hostility? Meanwhile, the mystery deepens with the sudden disappearance of Will Watson, his mistreated hired boy. Whos been pilfering food from their boat, and what are those eerie sounds the cook keeps hearing? Can the twins unravel the mystery before their vacation is ruined? - Summary by Rachel