This is an idea I've had for a while. I have to give some credit to my friends. We sort of came up with one of the characters together.

I am not going to tell you when in the series this takes place, but I will say it is sometime before Sea of Monsters, but after Luke's quest for a golden apple.

Luke knelt on the forest floor, shivering as the cold November wind blew through the trees of Camp Half blood. The son of Hermes did not have time to worry about the weather: there were more important things on his mind.

You will go on the field trip to Mount Olympus this December. A cold voice spoke in Luke's mind.

"Yes, Lord Kronos," muttered the teenage demigod.

You will steal the Master bolt and the Helm of Darkness.

Luke gasped. How was one kid supposed to be able to steal two of the most powerful items in the world? He couldn't. He wouldn't. "B-but L-lord Kronos, I c-can't," stuttered the son of Hermes.

I don't recall asking if you wanted to.

"But sir -,"

Enough. You have already pledged yourself to my army, disobeying your leader now would be treason. Interrupted the Titan Lord.

"Some army." muttered Luke.

What was that? asked the Lord of Time.

"Nothing, Lord Kronos," said the 18-year-old boy.

I thought so. After you have retrieved the bolt and the helm, you will bring them to me.

"Yes, Lord Kronos," Luke replied obediently.

The sound of a single twig snapping in the bushes behind the spot where the teenager knelt broke the silence, echoing across the small clearing. Luke leapt up, grabbing Backbiter from its spot on the ground next to him. He went to the bushes and pulled back a few branches. A small girl hid there, crouched down. It was obvious that she had been spying on her half-brother.

Her curly brown hair went about halfway down the orange camp half-blood shirt that she was wearing. She also had on a pair of shorts, but wore no shoes or socks. She looked like she was about nine years old. Her ears were slightly pointed, and her eyes were a soft blue, the exact same shade as Luke's eyes. She was Emily, a demigod from cabin eleven; a daughter of Hermes.

Luke grabbed the small girl by her sleeve, pulling her up. "How long have you been spying on me?" he demanded. There was still a chance that she hadn't heard anything too important.

"A while," admitted the girl, nervously. "What's going on, Luke? Are you working for Kronos?"

Luke glared at his half-sister. "You'd better not tell anybody about this." Luke gestured toward his sword, which was still sheathed, for now.

"Don't worry, Luke, I won't. Actually, I was wondering if I could help too."

"But -,"

"It took our dad more than a year to claim me. I had been waiting and waiting. I wanted to leave cabin eleven, but even when I got claimed I was still stuck in a sleeping bag on the floor. It's not fair."

"Are you sure, Em?" Luke asked his sister. Emily nodded.

The child can join us, she might be useful, but first she must prove herself. Kronos spoke in Luke's mind. Tell her that she must wait until there is something that we need to be done.

"Okay, you can join, but only if you can prove yourself. I'll tell you what you need to do later."

Emily nodded again, then bowed her head slightly, "thank you, Master Luke."

Luke grinned. He just might get used to that. The conch horn sounded in the distance, signaling dinner time. Luke took Emily's hand and they ran out of the woods together, just barely able to get back to camp before anyone noticed that they were missing.

This chapter was last edited on 11-11-2010