Board Thread:Percy Jackson & the Olympians/@comment-38847404-20190318054044/@comment-38915510-20190324195911

SPOILER ALERT (if you haven't read Heroes of Olympus)

There is Nico's point of view in Heroes of Olympus. For proof, read this link Is there Nico Di Angelo's point of view in Heroes of Olympus Hades doesn't break the oath because Nico and Biana get stuck in the Lotus hotel and when they get out, they are in a different time, so technically he was born before the oath.