The Son of Neptune released on October 2, 2012 and "The House of Hades" was released on October 8, 2013 The Blood of Olympus was released on October 7, 2014. The Son of Neptune The Son of Neptune is a 2011 fantasy-adventure novel written by American author Rick Riordan, based on Greek and Roman mythology. It is the second book in "The Heroes of Olympus" series, preceded by "The Lost Hero" and followed by "The Mark of Athena". The story follows the adventures of amnesiac Percy Jackson, a demigod son of Poseidon, as he meets a camp of Roman demigods and goes to Alaska
Neptune trojan side of the Trojans against the Greeks. As of 2018, the only named Neptune trojan is 385571 Otrera, after Otrera, the first Amazonian queen in Greek mythology. The amount of high-inclination objects in such a small sample, in which relatively fewer high-inclination Neptune trojans are known due to observational biases, implies that high-inclination trojans may significantly outnumber low-inclination trojans. The ratio of high- to low-inclination Neptune trojans is estimated to be about 4:1. Assuming albedos of 0.05, there are an expected Neptune trojans with radii above 40 km in Neptune's . This would indicate that large Neptune trojans are 5