A/N : Sorry It's been a long time since I updated, I was really busy at school and I lost the will to write this. Here is the chapter :)

Nico'POV

I...I... I just can't believe that he is back I thought with a big smile. He started walking toward us and I could see that he was very happy to see us again. One thing was different on him since the last time I saw him : he was radiating much more power since I saw him 1500 years ago.

'' Hey guys, how are you? '' he said.

'' Good '' everybody said in one voice.

'' I would like to speak with you but we will do it another time because the meeting is in 2 hours so see you another time '' he said then he disappeared.

With that all of us went to our cabin to prepare our siblings for the meeting.

Percy'POV

2 hours later, Throne Room

Olympus... It's been far too long. A lot of people were here today to hear my story and I could say that there was more people than I thought it will have. Chaos, the minor gods, every demigods at camp, the hunters and the gods of Olympus were there but don't worry the camp was protected by the magic of Chaos temporary. It mean that whoever try to pass the magic borders will die instantly. A few minutes later everyone stop speaking.

'' Ok, so where were you these last 1500 years Perseus? '' Zeus said.

'' No, I want to know first what happened 1500 years ago when he disappeared '' Artemis said.

'' Why? '' Zeus said looking at Artemis.

'' We should start from the beginning no? '' Artemis said with a little smile.

'' Sure '' Zeus said and he looked at me. '' Go on ''

'' Artemis, the day I disappeared you found a pool of Ichor blood in your tent right? '' I said.

'' Yes '' she said sadly.

'' And you found your hunters camp half destroyed right? '' I said.

'' It was you... I always knew '' she said while she was crying a little.

'' Don't be sad, I am here now '' I said while I was smilling toward her.

'' I know, It's just bad memories... continue please '' she said.

'' When I quit Atlantis I wanted to visit my wife first so I went to the hunters camp and I wait. They were not there so I decided to relax and eventually I start sleeping. Later, I was woken by a powerful thing who was coming toward me. It was Erebus the primordial god of the darkness. '' I said.

'' I thought that Erebus was gone no? '' Athena said worried.

'' The titans resurrected him by using the black sands '' I said

'' The black sands? '' asked Hades said.

'' The black sands are what Erebus is made of, so If you collect all of the black sands you can resurrect him but It's very difficult to do, even for the Titans '' Chaos said.

'' Erebus was on the side of the Titans and the Titans wanted to kill me to weaken you but they were not able because I was immortal. One thing I didn't knew was that the primordials are able to kill the immortals but It's very difficult. I tried to fight Erebus but he was too powerful. He beat me up totally. I had to fled. I visited Hecate to get a spell to be able to breath on the space. After she gave me the spell I teleported myself on the planet Mars to think about how I will beat him. Then Chaos found me '' I said.

'' What happened after '' My father said.

I took a big breath and I said '' The biggest war the universe has ever known, 100 times worse than the Trojan War '' I said sadly.

I made that chapter pretty fast so I am sorry If there is a lot of mistakes.