Secrets of Riverway by Ashley Hards

Hannah Edwards has a lot on her mind. For starters, her father—the Canola King—has been missing for months. And not her distracted mother, her meddlesome guidance counselor, nor her evil Uncle Fergus seem to care. Luckily, she has her secret journal and her best friend Sam Castillo for support. So when Sam tells Hannah he thinks he saw her father’s ghost down at the old Riverway Mill, Hannah decides to take matters into her own hands. She soon learns that Uncle Fergus has a plan to steal the family farm, drain the river, and find a hidden treasure. On the edge of going from being a "good kid" to a "bad kid", Hannah stops pretending to pay attention to her endlessly boring classes. With Sam, her journal, and eventually a whole lot of Riverway frogs, Hannah sets out to solve the mystery of her father's disappearance. A heartfelt story of a young neurodiverse girl with a whole lot of determination to do the right thing.