Feather

On a school trip to the Royal Swan Natural History Museum Ava finds herself at the centre of a heist: hundreds of invaluable bird of paradise skins from the Alfred Wallace Collection have been stolen! When she discovers a large jet-black feather shes sure its a clue but the police wont listen to her. Slipping away she takes the case to the Twitchers in an investigation that leads them to the bizarre and sinister world of fly-fishing and to a mysterious girl with a pet Raven called Caliban and a dangerous ring of thieves and smugglers.