Warning: Certain ancient Greek names matches words use of foul language but no foul language was intentionally used. Also if you haven't read them yet read 'The Tales of the Son of Poseidon & the Early Adventures' 'The Tales of the Son of Poseidon & the Olympians: The Lightning Thief' 'The Tales of the Son of Poseidon & the Olympians: The Sea of Monsters' 'The Tales of the Son of Poseidon & the Olympians: The Titan's Curse' and 'The Tales of the Son of Poseidon & the Olympians: The Magical Labyrinth' as well as the one shots 'The Tales of the Son of Poseidon & the Stolen Chariot' The Tales of the Son of Poseidon & the Sword of Hades', 'The Tales of the Son of Poseidon & the Bronze Dragon' 'The Tales of the Son of Poseidon & the Olympians: The Last Olympian' and 'The Tales of the Son of Poseidon & the Staff of Hermes' before reading this story as stuff that happened in them will be mentioned. Lastly, any one who wants to do a Demigods and Olympian reads story using 'The Tales of the Son of Poseidon' is allowed as long as you inform me about it.

A/N: I'm going to MAKE THIS CLEAR. Just like I mention on my bio page about every other fanfiction I done: I DON'T OWN THE PERCY JACKSON AND THE OLYMPIAN SERIES OR IT'S CHARACTERS as the rights goes to Rick Rioran. Also I suggest you guys start paying attention to the Author notes and my warnings that I left on EVERY chapter of EVERY story. Because I KNOW I warn all of you about the first chapter before it started.

Sorry if this chapter is too much like the book


Leo's POV Part XVII

I haven't felt this jumpy since I offered tofu burgers to werewolves. When I got to the limestone cliff in the forest, I turned to the group and smiled nervously. Beckendorf was there to support me.

It turns out Beckendorf wasn't too upset what happened to Festus. Sure it was his greatest project as well. But he figured something happened when he called up his bunk to find only Festus' head on it with a message carved into it's celestial bronze head.

Silena was with us, mostly because I understand that Beckendorf wanted to show it to his girlfriend. After all it explained where the two of run off two when we came here.

Jason and Piper were there too and they were holding hands like they did in the Mist memories—when did they officially became a real couple?

I shook my head as I need to focus on what I'm about to do.

"Here we go," I said.

I willed my hand to catch fire, and set it against the door.

My cabinmates—minus Beckendorf—gasped.

"Leo!" Nyssa cried. "You're a fire user!"

"Yeah, thanks," I said. "I know.

"Holy Hephaestus," Jason Mason said, "That means—it's so rare that—"

The massive stone door swung open, and everyone's mouth dropped. My flaming hand seemed insignificant now. Even Piper and Jason looked stunned, and we'd seen enough amazing things lately.

Only Chiron didn't looked surprised. The centaur knit his bushy eyebrows and stroked his beard, as if we were about to walk through a minefield.

That made me even more nervous, but I couldn't change my mind now. My instincts told me Beckendorf and I was meant to share this place—at least with Hephaestus cabin—and I couldn't hide it from Chiron or my two best friends. Just as Beckendorf couldn't hide it from Silena who was with us.

"Welcome to Bunker Nine," I said, as confidently as I could, "C'mon in."

The group was silent as Beckendorf and I both gave them the tour of the facility. Everything was just as I left it—giant machines, worktables, old maps and schematics. Beckendorf must have found a way to open the doors without the fire ability because Festus' head was sitting on the central table, still battered and scorched from his final crash in Omaha.

I went over to it, a bitter taste in my mouth, and stroked the dragon's forehead. "I'm sorry, Festus. But I won't forget you."

"Can you fix him?" Jason asked.

"No," I replied, "But the head is going to be reused. Festus is going with us."

"What do you mean?" Piper asked.

Before I could answer, I heard Nyssa yelled, "Whoa!"

I turned to see that Beckendorf was showing some of our siblings one of the work tables. Nyssa flipped through a sketchbook—diagrams for hundreds of different machines and weapons.

"I've never seen anything like this," Nyssa said. "There had to be more designs here than what Annabeth has on Daedalus' laptop. It would take a century just to prototype them all."

"Who built this place," Jake Mason said. "And why?"

"I'm wondering that myself," Silena said.

Beckendorf shrugged. Too be honest, the two of us weren't a hundred percent certain.

Chiron stayed silent, but I focus on the wall map I'd seen during Beckendorf's and my first visit. It showed Camp Half-Blood with a line of triremes in the Sound, catapults mounted on the hills around the valley, and spots marked for traps, trenches, and ambush sites.

"It's a wartime command center," he said. "The camp was attacked once, wasn't it?"

"In the Titan War?" Piper asked.

"No," Beckendorf grunted. "Besides the map dates back to 1864."

We turned to Chiron, hoping for answers.

The centaur's tail swished fretfully. "This camp has been attacked many times," he admitted. "That map is from the last Civil War."

Everyone frowned when we heard that.

"Civil War…" Piper said. "You mean the American Civil War, like a hundred and fifty years ago?"

"Yes and no," Chiron said. "The two conflicts—mortal and demigod—mirrored each other, as they usually do in Western history. Look at any civil war or revolution from the fall of Rome onward, and it marks a time when demigods also fought one another. But that Civil War was particularly horrible. For American mortals, it is still their bloodiest conflict of all time—worse than their casualties in the two World Wars. For demigods, it was equally devastating. Even back then, this valley was Camp Half-Blood. There was a horrible battle in these woods losting for days, with terrible losses on both sides."

That's when it dawn to me. "You mean between the Greeks and—"

"I swore upon the River Styx never to speak of." Chiron interrupted before I could finish, as if mentioning the Romans were a bad thing. "After the American Civil War, the gods were so horrified by the toll it took on their children, that they sword it would never happen again. The two groups were separated. The gods bent all their will, wove the Mist as tightly as they could, to make sure the enemies never remember each other, never met on their quest, so that bloodshed could be avoided. This map is from the final dark days of 1864, the last time the two groups fought. We've had several close calls since then. The nineteen sixties were particularly dicey. But we've manage to avoid another civil war—at least so far. This bunker was a command center for Hephaestus cabin. In the last century, it has been reopened a few times, usually as a hiding place in times of great unrest. But coming here is dangerous. It stirs old memories, awakens the old feuds. Even when the Titans threatened us last year, I did not think it worth the risk to use this place."

Suddenly I had a sense of guilt.

"But Leo and I found it," Beckendorf said, "It had to be an act of the Fates."

"Maybe so, but I hope for the good," Chiron said.

"It is!" I said. I pulled out the old drawing from my pocket and spread it on the table for everyone to see.

"There," I said proudly. "Aeolus returned that to me. I drew it when I was five. That's my destiny as one of the seven greatest demigods of all time."

"How can you be sure?" Silena asked.

"Yeah, I mean, it looks to me like any other crayon drawing to me," Jake said.

"Look." I pointed at the largest schematic on the bulletin board—the blueprint showing a Greek trireme. Slowly everyone's eyes widened as they compared the two designs. They were exactly the same.

"The mast head—" Beckendorf said. "That's Festus, isn't it?"

I nodded. "He's meant to be our masthead," I said. "Our good luck charm, our eyes at the sea. I'm meant to build this ship. It's going to be called the Argo II. But I can't build it alone. I'll need all the help I can get."

"The Argo II." Piper smiled. "After the original Jason's ship."

Jason looked uncomfortable, but he nodded. "Leo's right. That ship is just what we need for our journey to save Olympus from it's roots.

"One thing is clear," Chiron said. "You three—Jason, Piper, and Leo—are among the seven demigods of Rachel's Great Prophecy and Halcyon Green's prediction—the seven greatest demigods of all time. Although it's still unclear what the prophecy means, it's clear you must confront the giants in their homeland, where they are strongest. You must stop them before they can wake Gaea fully, before they destroy Mount Olympus."

"The Original Mount Olympus," I said. "We have to sail to Greece."