Almost twelve-year-old Oscar Hazelnut has no idea that the two puppies his Dad found in the hedge are the world’s last surviving Metal Dogtectors. Soon he is plunged into a magical and perilous world of buried Saxon treasure, talking animals, ruthless villains and the enchanted Golden Dog…and that’s even before he discovers the terrifying secret of The Extinction Club!Accompanied by an extraordinary puppy, a crazy stoat and a hungry piglet, Oscar sets off on the most dangerous journey of his life to try and save the future of the animal kingdom.