Warning: This article contains spoilers for The Titan's Curse
- This article is about the prototype. For the real Talos, see Talos.
Percy Jackson, Thalia Grace, Grover Underwood, Zoë Nightshade, and Bianca di Angelo encounter the prototype of Talos on a quest to save Artemis and Annabeth Chase. Bianca accidentally activates Talos by taking the only Mythomagic figurine her brother didn't have, and they battle the giant automaton. However, they are clearly outmatched, and have no way of defeating the automaton. Luckily, Percy sees a panel in the giant's foot and tells Bianca to distract it. She tells Percy it's her responsibility, and she gets in to control the giant. Unfortunately, Talos trips over an electric power line releasing electricity and ultimately kills Bianca inside. Her body was never found in the wreckage.
- It does not like to be called defective, as it attacked the group when Thalia said that he must be a defective prototype, though this may be a coincidence.