The Sea God's Lost Treasure

The final battle against the Titans is looming over Camp Half-Blood. With the Olympians still torn apart due to Poseidon's grudge at Zeus and Hades, Nico thought that they would not stand a chance against the Titans. Nico could not blame his Uncle for his anger, really he understood, but with the way things are he was desperate for a solution. That was when a Prophecy was given out and with steely obsidian eyes he set out to find, his Uncle Poseidon's stolen treasure.

AU-Where Nico Di Angelo was the one in the Prophecy and not Percy Jackson. Bianca is alive and followed Thalia in The Hunt. Set after the Battle of the Labyrinth. All Percy Jackson characters all belong to the great Rick Riordan.