Percy gets a letter from Hogwarts asking him to attend the school for sixth year after his holidays.What happens when the two worlds crash? Takes place after the Giant War and Wizard war.

{completed} ✓ When the great seven demigods of the new Great Prophecy went to save Annabeth from Arachne, they didn't realize that two of the world's strongest demigods would fall into Tartarus. Barely clinging to life in the hellhole, Annabeth Chase promised to herself that she would get out of Tartarus with her boyfriend, Percy Jackson. She had to escape Arachne and get to safety. That was her new mission. Jason Grace had no choice but to become the leader when Percy fell into Tartarus. He believes that mistakes will only kill them all- and each mistake was his fault. Gaea is getting stronger each day, taking advantage of the fight at Camp Half-Blood and everyone's flaws. Will the demigods reach the House of Hades in time to save the world?