Hey guys… this is my first fan fiction, so please help! Any how, this is the summary:

It's Annabeth's birthday and Percy has gone missing! What's happening? Set between LO and LH.

(I don't own any of the characters! All are Rick Riordan's)

Chapter 1

PERCY POV

Tring! Tring!

Percy Jackson groaned and rolled over to shut his alarm clock. Then he noticed the time: 6:00.

Groggy from his sleep, he couldn't understand why he had put such an early alarm, until he looked over at his half brother Tyson's bed. A gift wrapped package lay at the foot of the bed.

Damn!

How could he forget? It was Annabeth's birthday, the first since he-not he, they had defeated the twisted Titan king Kronos, and had officially declared each other in a relationship.

Annabeth would kill him!

Glancing cautiously at Tyson's snoring form, he tip-toed and quietly opened Tyson's gift. Then he groaned. Again.

There was no way on earth he could match Tyson's gift. It was a simple bronze square, but looking at it from different angles, he could see different pictures.

He, Tyson, Annabeth at the feet of Pan.

He, Tyson, Annabeth and Nico fighting at the battle of labyrinth.

He, Tyson, Grover getting the Golden Fleece.

He, Tyson, Annabeth, Grover at Mount Olympus.

…..

Suddenly he stiffened. Then he smiled. Because he now knew EXACTLY what to get her.

Quietly rearranging Tyson's gift to the way it was before, he opened the door of his cabin and got out. An hour later when Tyson would wake up, he would find a note attached to his bed to be given to Annabeth which read "I'll be back".

ANNABETH POV

Like Percy, Annabeth's day too started with a groan.

Not because of getting up early- she was perfectly used to it- but because of the extensive decoration in the Athena cabin.

She had considered her birthday to be a secret. So of course the whole camp knew that it was her birthday today.

Sighing, she got up and dressed, brushed her hair (she had started giving more attention to her curls ever since she found out Percy loved them) and got out.

"HAPPY BIRTHDAY!" Screamed everyone the second she got out. Shaking her head and muttering, she grinned at her friends and hugged them. Even Chiron was present, though he soon excused himself.

She understood why this was happening. Ever since the Titan war, everyone had got closer, because they now knew the pain of loosing each other. So, they made the most of their days left together. Of course, being one of the main heroes if the battle only helped her popularity.

Even the Ares cabin had gifted her spear. The other cabins too gave her gifts, but above all, she was looking for her seaweed brain, boyfriend, Percy Jackson. Just then, she spotted Tyson, who wished her, and gave her the gift. Assuming Percy to be a few minutes late, she turned her attention to Tyson's gift and gasped. She got tears in her eyes, and when she thanked Tyson, he hugged her.

"Where's Percy?" she asked, hurriedly wiping her tears- Percy hated it when she cried. Without a word, Tyson handed her the note.

"I'll be back…" Annabeth frowned. She knew Percy remembered her birthday, so why would he disappear? It could mean only one thing: that Percy was going out of his way to get her a good gift. She sighed; seaweed brain would remain seaweed brain.

Little did she know, that to get the perfect gift, how much danger would he have to face!