moment. In The Tyrant's Tomb, Tyson and Ella have settled in New Rome where the harpy has been using her photographic memory to reconstruct the lost Sibylline Books while the harpy and the Cyclops run a bookstore at the same time. Ella's transcriptions take the form of tattoos on Tyson's skin rather than being put on paper, something that Apollo finds to be awkward to deal with. Tyson also has his girlfriend give him a tattoo of his friend Rainbow. Tyson and Ella help Apollo (Lester) to decipher the prophecies surrounding the current threat from Caligula, Commodus and Tarquin and later to perform a ceremony to summon Diana for help against the emperors and Tarquin's undead legion. The two are still in Diana's temple when Tarquin attacks their bookstore, looking for the Sibylline Books. After the battle, Tyson and Ella rename the bookstore Cyclops Books and provide Apollo and Meg with the first part of a new prophecy that directs them to return to New York City to face Nero. Nico di Angelo Nico is first seen in The Titan's Curse, as an unclaimed demigod rescued by Percy, Annabeth, Thalia, and Grover. It is said that Nico had a crush on Percy ever since he saved him. At the end of the novel, it is revealed that Nico is a son of Hades. He appears in The Titan's Curse, The Battle of the Labyrinth, The Last Olympian, The Son of Neptune, The Mark of Athena, The House of Hades, The Blood of Olympus, The Hidden Oracle, and The Tower of Nero. Though he appears to be ten years old, he and his elder sister Bianca were born in the 1930s. After Zeus killed their mother Maria, daughter of an Italian diplomat, whilst trying to kill the children, Hades wiped their memories and placed them in the Lotus Hotel, a place in Las Vegas where time stands still. He is native to Venice, Italy and can speak Italian. Nico is initially depicted as cheerful and childlike, with olive skin and dark hair. He enjoyed playing Mythomagic, a mythology-themed card game similar to Magic: The Gathering. He takes the death of Bianca very hard, becoming moody, secretive, and irritable. He becomes angry at Percy, who swore to protect Bianca, but later forgives him. Afterward, he lived in the Underworld with Hades, where he becomes pale and shaggy-haired and begins wearing dark clothing.