BOOK 1:

(Not an ordinary Chaos and Percy Jackson story)
It all happened on the Christmas after the giant war.It was so peaceful that Percy forgot that the life of a demigod did not have any problems at all.But when his brother arrived.His mortal parents had another child and ignored Percy.His father was too busy trying to spend time with his other son.Hid girlfriend liked his brother and was most of the time busy with redesigning Olympus.But something happened that changed Percy forever.Now he is cold hearted.He lives in a world of hatred and pain.