It all started with the assassin.

A blond-haired girl sat on the deck of a flying ship: The Argo II. An amazing ship, it was, but it had been damaged in the recent attack from the Romans, led by the power-hungry Octavian. They were now sailing over the seas to the ancient lands.

Leo did a great job designing this, the girl thought. Her name was Annabeth Chase, daughter of Athena. She was gazing wistfully at the sea. She had no idea why. Ever since Annabeth had been twelve, and finally assigned her own quest, Annabeth had felt connected to the sea. She constantly felt like something was missing, a person, maybe.

The ship was quiet, as everyone mourned the death of the supposed seventh quest member, Daniel Peterson, son of Apollo. He was Roman, so his death only really affected Frank and Hazel, but the whole ship radiated sadness.

In front of the demigod, a geyser sprouted up from the ocean. Annabeth stood quickly, knife in hand. Her friends rushed to the deck, behind Annabeth.

Jason held himself like a leader, chin high and posture strong. His blond hair stuck up a little, like he just woke up, which was probably the case. The storm he had created to drive off the Romans was huge. He wore a smooth purple t-shirt and faded jeans. He held a pillow.

Piper's choppy hair was blowing in the wind. She held her bronze knife, Katoptris, interpreted as 'looking glass', in the pocket of her ripped jeans.

Hazel was wearing her usual style of clothes. Annabeth wasn't Aphrodite's daughter, and, seeing as she had too much on her mind to check, she didn't know what it was called. Nor did Piper. She held no weapons.

Frank wore some of Jason's clothes, which were way too small for him. A blue shirt and sweatpants weren't exactly fashionable, but what did Annabeth care? He held his bow, but none of his arrows were in his quiver.

Leo wore grease-covered jeans and an old white shirt. His tool belt wouldn't be much help in a fight.

Out of the geyser came a staircase spiraling down the tower, and eventually resting on the Argo II. A door formed at the top, and Annabeth was reminded of a Disney princess tower. But what came out wasn't a princess.

A man in a sea green assassin outfit, covered in seaweed came out. His weapons appeared to be part Celestial Bronze, part mortal steel (Annabeth was reminded of Backbiter). The man jumped off the tower, not bothering with the steps. Behind him, the tower crumbled, and the water shot out to grab Seaweed. He landed on a water hand, and stepped off gracefully. The water receded back into the ocean.

"Who are you?" asked Annabeth. She hated not knowing things. She was about to fire off more questions, but his confused look stopped her. He stepped forward hesitantly, and Annabeth brandished her knife. Faster than possible, Seaweed ran at her. He touched her forehead, and she saw memories flashing before her eyes. She crumpled, and the last thing she saw before falling unconscious was the remaining Seven charging the man.