Percy Jackson and the Great Inventor; The Tides of War

Set just after the start of book three, Athena, the goddess of wisdom, gets a mysterious invitation, to work with a mortal once again. With Kronos’s return coming closer by the day, and with the disappearance of Artemis, She accepts the deal. The question is, will it be enough, to change the tides of war?(A Percy Jackson and the Olympians fanfic)