Daisy and the Trouble with Maggots (6) (Daisy series)

Daisy is incredibly excited when her uncle offers to take her on a fishing trip. There's so much new stuff to learn, such as how water witches turn fishermen into dog poop, why supermarkets don't stock "picnic-y" things like lemonade and chicken wings on the same shelf, and why it's a really, really bad idea to use wriggly tiggly maggots as catapult ammunition.