Phorcys of Phorcys and Ceto as the Graeae (naming only two: Pemphredo, and Enyo), the Gorgons (Stheno, Euryale and Medusa), probably Echidna (though the text is unclear on this point) and Ceto's "youngest, the awful snake who guards the apples all of gold in the secret places of the dark earth at its great bounds", also called the Drakon Hesperios ("Hesperian Dragon", or dragon of the Hesperides) or Ladon. These children tend to be consistent across sources, though Ladon is often cited as a child of Echidna by Typhon and therefore Phorcys and Ceto's grandson. According to Apollodorus, Scylla was the
The Son of Neptune can only be defeated if the gods and the demigods join forces. This proves to be difficult. Percy and his friends manage to defeat the Alaskan Giant and save Camp Jupiter from destruction. During their journey, Hazel and Frank become true heroes who know how to use their powers and have self-confidence. Percy regains his memory on their return to Camp Jupiter and finds an army of monsters (including Stheno, Euryale, and the three Cyclopes) led by Polybotes attacking it. Percy successfully defeats him with the help of Terminus, his Cyclops half-brother, Tyson and the hellhound Mrs. O'Leary. At the