They are defeated in the Roman Coliseum by their Olympian enemy Bacchus, and the demigods Percy Jackson and Jason Grace, sons of Poseidon and Jupiter respectively. In the novel, the Aloadae kidnap the demigod son of Hades, Nico di Angelo and imprison him in a jar, in the same way they captured Ares centuries earlier, and plan to destroy Rome. Next to Orion, they are the smallest Giants to appear in the books, described as only being 12 feet tall.