Charlotte is going to prove her grandma is right--the lake monster is real!

When Charlotte gets a drone for her fourteenth birthday, she's determined to get footage of Dottie, the elusive lake monster of Dorothy Lake. Her grandma, who has dedicated her life to searching for the monster, is the joke of the town. But when Charlotte manages to capture a video of the monster and posts it online, she's the sudden target of a media storm. Now everyone is making fun of her too. Worse, droves of monster hunters arrive in her town, crowding the lake. When their boat propellers threaten to hurt Dottie, Charlotte is faced with a difficult choice.