The Festus Chronicles

As of the title, you can gather that Festus is going to show up a lot, along with other forgotten characters. In short, this is the story of how the gang meet The Moon-runners, a group of boys and girls who fight monsters, basically a group in between the hunters of Artemis and the Amazons.
But not all is as it seems. What ties do these new people have to the opposition? What are they hiding?

The only characters I own are the Moon-runners and Fanisha. All others belong to Rick Riordan.