Authors Note: Hi, don't own any characters from the PJO or HoO series's. And now, the moment you've all been waiting for-

Casper's POV~

That afternoon, we were summoned to the big house. By "we" I mean Biron, Ella, me, Percy, Annabeth, and the rest of the seven. Nico and the roman praetor, Reyna, were also present. Chiron's face was creased with worry, his brown eyes anxious. He motioned us inside, and we all found seats in the cramped living room.

"I trust you all know the details of yesterday's attack?" We all nodded. "Good. It is my belief, that this attack was a warning of things to come." Piper went pale. Frank took Hazel's hand. Percy and Annabeth looked anxious. Even Leo put down his tools to listen fully.

"What do you mean?" Ella asked. "What's coming? Who was trying to warn us?"

"Tartarus, Hecate, and Echidna." Annabeth said suddenly. The air seemed to get cold at those names. "This is only the beginning."

"Precisely." Chiron looked even more tired. "More attacks will come to our camp. After that," He inclined his head to Hazel, Frank, and Reyna, the roman demigods. "Your camp. Then, with no more heroes to oppose them, they will crush Olympus."

"There's something we can do, right?" Leo said. "We took on Gaea, why not these losers? All we have to do is….um…. Piper, explain what we have to do."

"I don't know. I mean, obviously we have to get the helm of darkness back, but I don't think that will help against Echidna's monsters or Hecate's magic, or Tartarus."

Her words made something click in my mind. "Maybe it will." At the puzzled looks on the other half-bloods faces, I explained. "The helm is this big crown of mystical magic and powerful deathy mumbo jumbo, right?"

"Yes." Nico looked a little miffed at my description, but didn't say anything.

"Then couldn't we use it to send Tartarus back to, um, Tartarus? Would it be powerful enough to destroy him?" The others looked excited now too, even Nico, which was a rarity.

"It would be! But we would have to get it away from him first." We all deflated a little.

"I do not think that that will be a problem much longer." We all jumped. Standing in the doorway was Rachel Elizabeth Dare. Her red hair was uncombed and her jeans were covered in marker doodles.

"Rachel!" Chiron said. "We didn't hear you come in."

"Sorry. Should have knocked. But I had to talk to you guys. I had a vision."

"What was it?" Annabeth asked urgently, taking Percy's hand as if to reassure herself he was still there.

"I saw the camp. Monsters were attacking from all sides. You were completely outnumbered." Rachel looked like she was going to be sick. "You had to fall back, but one person was still fighting. They were….So powerful it was scary. But- I couldn't see who it was."

"Like, good scary, or like, bad scary? They were fighting for us so…?"

"I mean scary scary." Rachel said. "Good but… terrifying." I glanced around the group. Everyone was pale and nervous. We glanced around at each other, sizing each other up. From the way Rachel talked, she had seen who it was, but didn't want to say for some reason, which meant it was one of us. Shivers went up my spine. I looked to either side to be sure that Ella and Biron were still there, by my side.

"We just have to keep going, right?" Percy said, forcing his usual cheery tone. "Nothing we can do until it happens. What choice do we have but fight?" A couple of people nodded.

"Yes. I should go see if I can have any more visions that might be helpful." Rachel said. Chiron nodded and sent us all off on our individual missions. Biron went to rally any children of Hecate that weren't injured from the explosions, to see if they could strengthen the barrier. Leo went to help his siblings make as many weapons as they could. Percy went to IM Tyson about this news, and I went to the lake to warn the naiads of the coming danger. Ella went to the woods to do the same, and the others scattered as well.

By dinner, we were all exhausted. Leo's shirt was peppered with smoking holes, and Annabeth looked like she had just walked through a hurricane. I shoveled food in my mouth, not really tasting it, and bid the others goodnight. I fell asleep as soon as I collapsed on my bed, still fully dressed.

Sorry not much happened in this chapter, I've been SUPER busy of late.