" The second Amazon they met wasn't so friendly. She was dressed in full armor, blocking the throne-room entrance. She spun her spear with lightning speed, but this time Percy was ready. He drew Riptide and stepped into battle. As the Amazon jabbed at him, he sidestepped, cut her spear shaft in half, and slammed the hilt of his sword against her helmet. The guard crumpled.
"Mars Almighty," Frank said. "How did you - that wasn't any Roman technique!"
Percy grinned. "The graecus has some moves, my friend. "

― Rick Riordan , The Son of Neptune (The Heroes of Olympus, #2)