Summary: Perseus had escaped from the Romans and the prince of Greece had been on the run ever since. Though, with the Romans searching for him and his friends traveling with him, unknown secrets were yet to be uncovered. How could Percy avenge his dead family, if he couldn't even trust his friends and they couldn't trust him...

Disclaimer: PJO and HoO belong to the troll named Rick Riordan...

Prologue: Going to Greece

Finding reasons to travel

"Mommy! Mommy! Look!", the 7 year old girl stretched her arm, so her mother could see the tooth in her hand. With the other hand, she pointed at the new hole that had appeared in her mouth.

The woman smiled at her daughter as she walked into their home, but it wasn't a happy smile. The girl could see a certain kind of sadness in her mother's eyes as she walked toward her. Her mother squatted in front of her daughter and hugged her.

"Mommy? What's wrong?", the girl asked confused, sensing that something was wrong. "Did something happen?"

Her mother broke the hug and kissed the girl's forehead. "I'm sorry, my dear", she started, "but the king has asked me to go to Athene. I'll be leaving tomorrow."

The girl frowned. "But... why?"

"Just to check out some things over there, my dear, so don't worry. Nothing's going to happen to me, or you. People will take good care of you while I'm away, I'll make sure of that."

Her daughter bit her lip, but nodded. She knew that she couldn't stop her mother from going. That, she had learned from all the times her mother had had to go away. But that didn't mean she liked it. "When will you be back, mommy?"

Her mother smiled. "I'll be back in two weeks", she said as she hugged the 7 year old girl.

Two weeks later, her mother didn't come back...

Annabeth opened her eyes and sat up straight, her hands covering her eyes as she cried. It had been years since she had had such a dream about her mother's death. She'd pushed it away while working for Thalia. Could it be that she had this dream because she didn't have that distraction anymore? She sighed and walked out of her tent.

She looked up at the nightly sky and remembered how Thalia used to look up longingly at the stars when they were in sight. It had always bothered Annabeth why she would do that, since she never liked not knowing things.

The blonde sighed. She knew she wouldn't find the answer any time soon. The last couple of days, their group had been heading toward Greece, but even she didn't know why. That boy, Livius, had insisted to go there and surprisingly enough, Nico had agreed with him. Annabeth knew that they wouldn't find Thalia there - she knew her best friend far too much - and didn't want to go with them

Though, they were fugitives and somehow, their names and faces had been found out. Now, it was too dangerous for them to travel alone, so Annabeth had no choice but to stick with the group.

It was still hard to move around, though, while half of the group was still recovering from their wounds. Everyone needed all the rest they could get, especially Livius. Even if he said that he was okay, Annabeth could see him flinching from the pain when the others didn't look. Definitively not okay.

She walked toward the lake, but stopped in her tracks as she saw someone sitting at the edge of the lake. Silently, she pulled out her dagger and walked toward the man. Just when she was about to attack him, he looked at her. Grey and sea-green eyes locked.

Sighing, she put her dagger away. "What are you doing here, Livius?"

Livius smiled at her, before looking at the water again. "I can ask the same of you..."

Annabeth shrugged. "Couldn't sleep", she said before sitting next to him. "How about you?"

"Same", a long silence followed, though it was not awkward. Annabeth stared in front of her, already lost in thought. She remembered how broken she was when her mother had died. But that wasn't what bothered her now... It was that the only information she got about her mother's dead was that she was killed by a Greek. Who, how or why, nobody had told her.

When she'd asked those questions, they either couldn't tell her or wouldn't tell her. For a long time, she had wanted to find out what had happened with her mother, but hadn't been allowed to investigate.

As if someone was keeping her away from the truth.

But now they went to the country where her mother had died. What if she would be able to find some details about her mother's death? A question came into her mind from that thought and she looked at Livius again. "Why do you want to go to Greece? What is there that makes you want to go there so bad?"

Livius seemed startled by the questions, but soon regained his posture. He looked at Annabeth as if he was trying to make out if he could trust her or not. When he made his decision, he looked back at the lake. "While being captivated, I became friends with a Greek. He told me that there were still people who served the Greeks - not the Romans. If we can find them, maybe they could help us."

This made Annabeth frown as another question came up. "Help us with what?"

Livius stood up and whisked the dirt from his clothes. "With getting our revenge", he said before he walked away to his tent, leaving Annabeth behind, still frowning from his explanation.

[A/N]: Here's the prologue of the Hidden Prince! Since this is the sequel of my other story, the Hidden Gladiator, I strongly suggest you should read that first... But seeing how smart you people are, I believe you already know that ;D

So about this story... The main couples are Percabeth (finally!), Jasper and Thalico... Just fluff, no other things ;P Other thing is that this will contain character deaths. The main character is still Percy, but the POV changes from time to time (a lot xD). For instance, this chapter was Annabeth's POV. That's why I called Percy 'Livius', since Annabeth obviously doesn't know his real name (yet).

I hope you'll enjoy this story and that you've enjoyed this chapter ;D If you have anything to ask me, you can PM or mail me (my mail address is on my profile page). Extra information you can find on my profile as well ;) Please review if you want to make a writer happy ;)

'Till next time ^^

Xx Anny