Disclaimer: All characters belong to Rick Riordan

This story is supposed to happen way, way, after the Mark Of Athena... probably how I imagine Rick Riordan ending his 5th book...
Also, I've changed the names of the characters around a bit. I know that the giant's name is Porphyrion or something like that...P. and Frank are not in here...

I

Percy stood at the stern of the warship. They were approaching the island. It was visible, distantly in the mist. As they neared the island, he could see the clouds hanging over it, threatening to fall in torrential downpour, and the mountain. It was swathed in a dark impenetrable mist so thick and dark, that there was no telling what could be behind it. The ship began to descend slowly and everyone got ready with their weapons at hand. Annabeth was looking determined and calm, quite unlike how he felt. He knew that it was at this island he would meet his end. He hadn't told the others of the prophecy. Why take away any hope that they had by saying that their leader was doomed to die? Also, he couldn't face Annabeth with such a truth. She would be crushed. But he held on to the hope that maybe the Oracle lied, or there were some other meaning to "the son of Poseidon, who fell Kronos, shall meet his end on the island of woes." Just like the last Great Prophecy, in which he thought he was destined to die, but it turned out he was not the hero but Luke, maybe this one has a loophole too. But he willed himself to focus on their quest.

"Get ready to land!" shouted Leo, the ship's repair boy or as he like to call himself, "the Supreme Commander of Argo II". Everyone braced themselves against the hull as the landed with a bump, on the island's sandy beach. Everyone filed out in order from the Roman Camp, while the Camp Half-Blood demigods loitered down the steps taking their own time. They knew from the prophecy that whatever they had to face was inside the mountain. Percy felt quite nervous looking at the mountain. Percy and mountains didn't go together. The last time, he had blown up a volcanic mountain, displaced half a million people and unleashed Typhon. He looked at Annabeth. He could tell from her face that she was thinking of the same thing. She looked at him, her startling grey eyes filled with mixed emotions. He had gotten pretty good at reading her face. He could see that she was afraid for them, yet determined to get this quest over with. They trudged towards the mountain path, no one talking, which was strange, especially for Leo. Percy didn't think that kid could go more than five seconds without making some annoying comment. It just showed him how nervous everyone was.

They saw a path winding towards the heart of the mountain. "Well, that looks inviting," remarked Jason. "I still think that we need a plan on entering the mountain."

Jason's plan involved several of the male demigods disguising as girls, so it was not an option, for Percy at least. Percy voted to them just sneaking up inside the mountain without making much noise. They all knew what they had to do after they got in. The mountain was the lair of the giant Polyphemus. He had risen by sapping Hera's strength, but now, he grew stronger from the life force of the mountain. Their plan was to destroy the mountain and at least try to slow down the rise of Polyphemus to complete power. They decided to send Annabeth who had the invisibility cap to scout ahead.

"Annabeth, I still don't think you should go alone. If there is anything in there, I don't want it hurting you," said Percy, looking worried.

"There is only one invisibility cap, and I am not going to let anyone else handle it," she states, glaring at Percy.

"Hey, that was one time, and I used it to help you, remember," said Percy, sheepishly bowing his head.

Annabeth waved her hand dismissively "Details, details."

She then proceeded to go up the slope towards the entrance.

"Annabeth, be careful," he told her as she put on her invisibility cap.

"As always," she replied.

Percy paces up and down the beach waiting for her to come back.

"Calm down, Percy," chided Piper. "Annabeth is very careful. She won't let herself be scared by monsters."

"Yeah, but still..." Percy knew he was whining, but he didn't care.

Then suddenly he fell, face first on the beach, getting sand all over his mouth.

He looked back to see Annabeth laughing her head off, and everyone else sniggering like crazy.

"Ha Ha, I am so laughing," said Percy, his voice dripping with sarcasm.

"It's funny and you know it, Seaweed brain," retorted Annabeth, smirking at him.

"Just tell us what you saw," he asked her.

She reported that she saw nothing but there was a strange smell. Monsters! Percy thought instinctively. But that didn't daunt him. He had singlehandedly slayed thousands of monsters so a few more didn't faze him. What he hated to fight were Cyclopes and hellhounds. They both reminded him of his half-brother and his pet dog. Thinking about the past reminded him of the prophecy. He suddenly felt that he needed to say something to his friends before he walked to his death,

"Guys," he started, " I don't know how to put this, but if something goes wrong, I want all of you to know that it was an honour to fight beside you"

"It won't go wrong," Annabeth reassured him. He took comfort in her words though he knew she was mistaken. Even if he died, she would be with him till the end.

They slowly walked in through the entrance. The change from bright sunlight to opaque black was unnerving for his eyes. At last, as his eyes got used to the surroundings, Percy could see that they were in a huge inverted chasm. The ceiling seemed to go on forever and the he couldn`t see the sides of the mountain. There were many small tunnels to his left and right.

"We should go through one of the tunnels," he whispered. Even the whisper seemed to echo in the darkness making it seem a thousand times louder.

"Yeah, but which one? They all look exactly the same and even if we go through the right one, how will we know to get back." Leo whispered . Percy wished he had his friend with him, Rachel Elizabeth Dare. She had clear sight and she would probably know which way to go. Or Grover, who could play one of his path finding songs on his reed pipes. But Percy knew that he had to make the decision and quick.

'We'll go-" he started, when there was a small rustling sound from above. He looked around them. He saw took out his sword and the faint light from the sword made strange shadows on the walls.

"What was that?" Piper asked. She had her bronze knife Katopopris, out. Suddenly, in its reflection, Percy saw something fly above them. When he looked up, there was nothing. No one else seemed to have noticed it.

'Piper, look at you knife and tell me what you see,' he said. She looked and gasped, turning her head around the whole cavern.

'They are everywhere,' she whispered, agonized.

'What?' Annabeth asked.

Percy hit the button on his watch that expanded into a sheild. Using the underside, which was very shiny, he showed the others. Above them, floating in the air, were bat-like creatures that had faces like wolves. They were completely surrounded. The monster had known they were coming. They had walked into an ambush.

/

Please Review, ...Also tell me if you guys have any ideas to how the story should go... I have yet to write the ending...