The Mark of Athena

The Mark of Athena is the third book in Rick Riordan  Heroes of Olympus Series.  it is about when Annabeth, Jason, piper and Leo are in the Argo 2 going to camp Jupiter.  Leo built it himself it took him about six months to built it.  When they get to the camp they are greeted by and explosion caused by Terminus.  He is the one that guards the border. When Annabeth is down from the ship she quickly sees Percy and runs up to him and kiss. Percy is happy and welcomes his new friends Hazel and Frank. Annabeth notices that Percy has a mark on his forearm showing that he is a leader. Renya tells them that they will eat under the shadow of their ship.