Hey! Just for anyone who was wondering... Percy and Calypso did NOT do anything serious! I did think of it at one point... but I just couldn't picture Percy going that far. Hope you like this chapter! (Even though it's rather short)

I blinked. I thought maybe I had misheard Chiron, or that the war with Kronos and old age had finally gotten to him and he had confused me with some other Percy Jackson that had a sister. But Chiron was looking perfectly sane to me, and one of the perks of being a god is super hearing, so it left me just plain confused.

"I don't have a sister," I said. Chiron gave me a look. "Um, do I?"

"Actually–and rather unfortunately–you do." Chiron reached into his breast pocket and pulled out a school photo, which he gave to me.

"Her name is Tatiana Coulter, but most people call her Minnie. She is eight years old and lives in Cocoa Beach, Florida where her mother owns a surf shop. Her favourite colour is purple; her favourite sport is soccer; her favourite food is ice cream; and her secret ambition is to either save the Florida beaches from pollution and developpement or to become a bathing suit model."

My brain tried to process all this information as Chiron handed me the photo. I stared at the small grinning face. The family resemblance was there, that's for sure. The girl—Tatiana, or Minnie—had the same dark hair as me (except hers was longer and more wavy), the same green eyes, and even the same mouth, though it was hard to tell since Minnie's two front teeth were missing. She looked sort of spunky and upbeat. I figured it wouldn't be so bad having her as a sister. But that didn't mean I was okay with it.

"But how come no one's known about her until now?" I asked Chiron. "How did it happen? Where is she?"

"It's a bit of an interesting story. As for where she is: Minnie is here at Camp Half-Blood."

I blinked. "Like, right now?"

"Yes. She only arrived a couple hours ago and we sent her straight to bed in Poseidon's cabin. She was just exhausted."

A billion more questions rose within me. I had to control myself so that they didn't all come pouring out in a jumbled mess.

"How come she's been determined already, though? Who—"

Chiron put up a hand. "It'll be easier if I just explain," he said. I nodded.

"As we have learned, Minnie is a much more aware demigod than almost all of the others here at camp. Her mother never revealed the identity of her father, but Minnie had an interest in so called 'Greek Mythology' and apparantly figured out a lot on her own. She says her abilities appeared only a few months ago (which is extremely early for a half-blood), right around the time that monsters began to appear in the area. Of course, most were in Kronos' control, but there were still a few stragglers that had nothing better to do than hunt a young demigod. Obviously Minnie was very good at keeping most of them at bay."

I listened; this was pretty hard to believe. But on the other hand, Annabeth had been around Minnie's age when she had first arrived at Camp Half-Blood. Minnie must be a fighter. Chiron continued:

"Poseidon was keeping her well hidden until a few weeks ago when Typhon was all over the news. Minnie immediately realized Typhon for what he truly was. She became posessed by the thought that perhaps she could be of help, and—"

"Wait. Hold on a minute," I interrupted. "She didn't come here because she thought she could help us, did she?"

"You have to understand, Percy, that she didn't know how serious this all was. She simply saw that there was an enormous threat to Olympus and wanted to help. Minnie is a very... outgoing, sure of herself type of girl. She was certain that she would be able to help."

"But she was too late."

"Well, yes. Minnie managed to swim up the coast unnoticed until she reached New York. Unfortunately for her, she arrived the day after you turned sixteen."

"Well how come I didn't know until now?"

"Well to tell you the truth, none of us knew until now. Minnie stayed on the outskirts of the city for a few days, but was attacked by a group of rallying empousai. She barely escaped with her life. As soon as we realized she was a demigod, we sent a satyr to take her back to camp."

"That still doesn't explain how she was determined so quickly."

"Well frankly it wasn't too hard to guess, hearing her story. And Poseidon must have known he couldn't hide forever."

Something stirred in my memory. I remembered back to the conversation I had overheard between Amphitrite and my father. What had Amphitrite said? Something about staying 'lord of her heart' and having to deal with someone other than me. It must have been Minnie she was talking about, it had to be! I mean, I wasn't too happy about the whole situation, but at least it made some more sense now.

"… And then, of course, that led to another bit of trouble."

"What?"

"Well as you can imagine, some people aren't too happy with this new development."

Thunder rumbled across the sky in agreement.

"Zeus," I said, with a sinking feeling in my stomach.

"Naturally. Both Hades and Poseidon have now broken their oath twice, but as far as we know, Zeus has only slipped once. And it doesn't help his stress level that all this happened only days after the end of a major war—after he already granted immortality to one of Poseidon's children."

I grimaced. Chiron smiled sympathetically.

"Don't be worried, though. Whatever Zeus does, it's Poseidon's fault, not yours. Things like these will pass soon enough. Well, as long as Minnie stays at camp, is properly trained, and doesn't get involved in anything fishy, that is."

"Easier said than done," I muttered.

Chiron chuckled. "Well I guess that's true," he said. "I would get you to meet her, but she's asleep at the moment. Actually I'd like to be getting to bed myself. You don't mind hanging around 'til morning, do you Percy?"

I shook my head. "No problem. I want to lay low for a little while anyhow. I just creamed Ares in a fight. He may come hunting me down."

Chiron shook his head in amazement. "Well that certainly is a feat. Now if you'll excuse me… I'll see you in the morning, Percy."

:)