After being summoned by Hades and Hecate, Nico must leave his boyfriend Percy to go help out one of his dad's friends and teach defence against the dark arts at Hogwarts. However the Golden Trio seem very wary of their new professor and Nico's quest might be more eventful than he planned.

The fight with Gaea is over, but with her death so comes others, including the beloved daughter of Athena. With grief, Athena convinces more than half of the counsel that Percy should be banished to Tartarus, a hell he barely escaped. He is thrown away. Years pass and a new war begins. The very personification where they sent their Hero comes to fight the gods. Tartarus had not only an army of monsters, but with him a powerfully being sides with him. The two together are too powerful for the gods and their children to fight, what will happen to them? Sound's kinda cliche, but there are twists like I usually put in. All rights go to Rick Riordan. Only time I will say this.