Disclaimer: I do not own any of these characters except for Summer, because she really is my pride and joy. =) All of the characters either belongs to Rick Riordan or Cressida Cowell. Enjoy!

Chapter One: Tyson Plays Whack-A-Mole

Percy POV

It had been awhile since I had sailed. The spraying ocean mist splashed upon my face making me feel at home. Ever since the end of the Titan war, Chiron had been sending us on scouting missions, looking for Titans that had disappeared after Kronos was defeated. One known Titan that had escaped was Oceanus who had retreated from my father in their epic battle.

When reports of stirring typhoons were discovered, Poseidon sent out scouts to the hidden parts of the seas, but none returned. It was then that my father decided to send his children into the dark, you know with the possibility of getting killed. Any other father would have done the same! Although, we could tell that he was pretty reluctant; he knew that it was the only way. We were honestly much stronger than some of his mermen warriors, and my Curse of Achilles was also a brilliant advantage.

Tyson was with me, along with my sister, Summer, who we had discovered a couple of days after the gods had made their pact to me. She was a good two years younger than me which angered me because she could have been the prophecy child just as easily as I could, except Poseidon had kept her under lock and key in the sea with him, hidden from the world.

She looked a lot like me; she had long flowing black hair that went to her waist and deep green eyes like mine. Her face looked like mine too and so did her color, despite being stuck underwater most of her life.

Summer stood at the front of the ship, her black hair flowing in the wind as we propelled forward, and the ocean mist spraying up at her created facets of light reflected from the moon. My sister was really beautiful, like she was born from Aphrodite as well, but I didn't want to think about my dad having any sort of relations with Aphrodite.

Tyson was below deck, and I could hear him sharpening swords, preparing for the fight we knew coming as we came closer to the nautical points that Poseidon had told us about. In the months that he had been with us, he'd surprisingly matured just a bit, and our father trusted him in battle. Out of all the gods, I'm sure Poseidon was the only one that cared for his kids from the start because when we left him he told us to look after one another, and to come back in one piece.

Summer came towards me from the front of the ship and put a hand on my shoulder. "I can sense them; can you feel that?" she asked.

I closed my eyes and could feel the stirring. About 7 nautical miles in front of us, there was a cluster of figures. It wasn't a school of fish, I could tell for sure, but they definitely weren't scuba divers, not in this weather. And whatever was out there was on a head-on course for us.

"We'd better prepare for battle," Summer said. "I'll get Tyson."

I grabbed her arm and pulled her back, "Hurry."

She nodded and took off below deck.

I reached in my pocket and took out my trusty ballpoint pen, Anaklusmos, or Riptide in Ancient Greek. I uncapped it and it stretched into the sword I had become accustomed. Its very blade glowed gold, and normally the sight of it sent monsters running. My guess was that Oceanus wasn't going to be as frightened.

Summer and Tyson poked their heads up from below deck, and they came up. Summer stood there with knife in hand. She was the only other girl that I knew that could fight with a knife. Oh, but this wasn't any knife. This knife was slender and could be connected to a string that was connected to a bow. It had kind of a yo-yo effect. Summer would set her knife and shoot it like an arrow; it would stab her opponent, and then come back to her. Tyson had his hammer which he had nicknamed Thor even though I told him countless times that Thor wasn't the hammer.

"How far are they, do you think?" Summer said walking up next to me.

Suddenly, I glowing blast of green came into our view, and I pushed everyone out of the way. It hit the main mast and green flames engulfed the sail.

"Greek fire!" I shouted.

Soon, they were aboard the ship, and I heard Tyson yelling "FOR POSEIDON!" The creatures looked like mermen without the tails, and they were covered in crustaceans. Lobsters clung to their bodies, and starfish were used as skimped clothing. They had swords which looked like the bill of a swordfish, but they looked sharp. I attacked the one in front of me and then turned to block an attack from one behind me. I lunged and slashed until the five that had surrounded me were dead on the deck.

Summer didn't need any help killing the creatures. When I looked to her, she was battling three and with one release of her bow, a stab, and a slash they were out for the count. Tyson was managing himself. He swung his hammer around, catching the six opponents around him, and sent them smashing into the wall of the ship. He then started to play Whack-A-Mole with the ones that were gaining consciousness already.

My problem was the Greek fire. Greek fire will continue burning and cannot be doused by water. The ship was going to be completely burned in another couple of minutes or so, and this fight would have to continue underwater.

"Percy, watch out!" I heard Summer yell.

I turned just in time to see a swordfish sword coming down on my head, and even though I knew it wouldn't affect me, I still cringed and blocked his attack. I pushed him away which sent him flying into the side of the ship. The waves were starting to pick up, and I had a feeling that Oceanus would be with us in a little.

I stumbled and slammed into the side of the ship which stunned me. I looked around in agony. This wasn't how it was supposed to be. They seemed to be coming out of nowhere, ten by ten. About eleven of them took Tyson down, and I could see Summer struggling to keep the seven that were surrounding her busy.

"Percy Jackson," said a voice.

I turned to see standing on a jet of water a tall dark looking man. He looked old, and he had a white beard that was crawling with shrimp. He looked like a normal human being, but you could tell by his dark blue eyes, that he could only be part of the deepest darkest waters.

"I see Poseidon is sending his children to do his dirty work. How sad. I was hoping for more of a challenge."

"And so were we, but I don't see that happening," I retorted.

Oceanus looked offended. He pulled back and then landed behind me. He wielded a long staff, that when hit the deck, turned to two long sea serpents. I readied Anaklusmos and was about to strike when I heard a slight boom followed by the ship lurching backward. I looked up to see what had hit us just to see a burning mess. Green Greek fire had mixed with red fire was now burning the ship, and parts of it were already coming down.

Oceanus looked up as well and sneered, "This isn't over, Perseus Jackson. Tell your father, this is not over." He snapped twice and disappeared in a mist along with his servants.

I frantically looked for Summer and Tyson in the burning rubble of our ship. "Summer!" I screamed. "Tyson!" I found Summer under a piece of burning wood, knocked unconscious her knife in hand. I pushed the board out of the way and picked her limp body from the deck. All I had to do was find Tyson and pray that the big guy wasn't unconscious too. I didn't have much time to look. The deck of the ship was already burning.

I checked everyone up top, and then went below deck. He was nowhere to be found. "They took him!" I yelled in anguish. Anger filled every bone in my body as I tried to get at least my sister out of the rubble. I tried to climb up the stairs, but the fire was already spreading down here. I looked around for any sort of exit, but there wasn't.

We were stuck.

I looked at the wall in front of me and prayed to Poseidon that this would work. I stuck my hand out in front of me and focused. I felt the familiar tug in my gut and the water from behind the wall gushed towards me sending us both to sea.

As we were being pushed out, I felt Summer slip from my grip and she was shot out, her dead weight carrying her out faster. And as I was rocketed out to the sea, I felt the edge of the hole I made come in contact with my head, knocking me unconscious, knowing I had lost my two siblings and failed my father beyond belief.