Disclaimer!

These characters do not belong to me nor do I make any money off this story. I am only writing Fan Fiction. The characters belong to their respective authors J.K Rowling and Rick Riordan. I only own this piece of fanfiction.

I hope you enjoy Joining Forces. Thank you for reading.

Annabeth POV:

"Remember?" Nico asked after Percy finished speaking.

"Yeah, I have no idea what she means," He replied, shrugging his shoulders.

"Maybe it's a reference to when you lost your memory?" I suggested. Before the war with Gaea, Percy had exchanged places with a demigod named Jason, the son of Jupiter, Zeus's roman form. They both got their memories wiped and placed in the other demigod camp. Well, not completely wiped, thankfully Percy still remembered me.

"Something to do with the others?" Nico said, referring to the Roman demigods. Chiron hadn't told us if we were allowed to share any other information about the demigods, it was best we told as less information as possible.

"Other demigods," Dumbledore considered the idea, "perhaps a being from your world is bringing the dead back? Is there anyone who can do that?"

"Yes," Nico snapped, "There's plenty,"

"He's right," Percy agreed, "Also, most beings in our world have god-like abilities. I don't know how we had numbered them all off into one prime suspect,"

"Also, it has to be someone who knows about the wizarding world," I added, "I don't think a lot of beings in our world know about yours,"

"Well, we can't find out," Percy said, facing me, "I don't they're going to admit that they're the big bad guy behind this all if we just ask them politely," He turned back to Dumbledore and raised an eyebrow, "Is there a way for that to happen?"

"Truth serum," Annabeth responded, "Though I don't think it's a stable way to solve this. I mean we would have to make a lot of batches and ask everyone: monsters, demigods, gods if the serum even worked on them,"

"Truth serum," Percy said, smiling, "We didn't learn that in class. You read the textbooks Chiron gave us,"

"Didn't you? I've almost finished all of them,"

Nico snorted. Percy pecked me on the cheek, "That's my Wise Girl. We haven't been here for a week, and you've already so far ahead,"

"I think I'll have to reread though. I might've missed some things,"

"Perhaps, there's a god of truth-" Dumbledore suggested, stroking his beard.

"Apollo," I answered.

"Yes, perhaps he could help us,"

Nico laughed, "Ha. The gods don't normally help us, I think they give us more problems than solutions actually,"

"And," Percy added, "Apollo is in his own pickle right now,"

"Maybe, we could find a pattern of the people who have been resurrected?" Nico suggested, shrugging his shoulders, "So far. There's been you Dumbledore, Snape, and Bellatrix. You all are very powerful wizards and a witch,"

"But what about Colin Creevy?" Percy asked.

"Who's Colin Creevy?" I asked.

"Colin is a student who was killed by Death Eaters near the Battle of Hogwarts," Dumbledore explained, "I found him on the school grounds resurrected, and enrolled him back at Hogwarts,"

"He doesn't seem like the type of wizard who is really powerful," Percy said, "More like Harry's fanboy,"

"Death Eaters," I mused, it was difficult to figure some things out if we didn't know the story that preceded this all. As if reading my mind, Dumbledore said that he should explain the events concerning the battle of Hogwarts. "It is better if you know," Dumbledore explained what had happened with the battle against Voldemort. How Tom Marvolo Riddle, a descendant from Salazar Slytherin, became Lord Voldemort. How there was a prophecy about his demise. How Voldemort tried to kill Harry Potter as an infant only to have the spell backfire, making Harry a vessel for a part of Voldemort's soul that night. His steps to return during the Triwizard tournament. The reassembling of the Order of the Phoenix, the hunt for his Horcruxes and finally, when their foe died.

Once Dumbledore had finished explaining, I could only nod my head in understanding. "Lucky for me, when the resurrection somehow didn't include the curse inflicted on me by the ring,"

"Wait," Percy asked, "How did you know all that if you died before Voldemort did?"

"When I came back to the school, I was relayed the information from the professors what had happened," Dumbledore leaned his head over onto his hand as if repeating all the events to us was draining him of his energy, "It's getting late. You should return to your dormitories,"

"How are we supposed to meet with one another again?" Percy asked, "We can't always visit you. Everyone would suspect something, I think they already do,"

"And our schedules only allow us to see each one another a few times," Nico added, "Why is that anyway?"

"No one at Hogwarts besides me, know your true origin, at Chiron's request. I was only resurrected not long before the school year started, so I had limited time to inform Chiron, and also resume my position as headmaster while also working on other matters for this situation. The teachers selected your classes amongst them with some of my input after the sorting. Chiron suggested that you didn't have flying classes. The professors are still curious about my return along with Severus's. As for everyone's suspicions, my assurance will help them get used to the idea of Americans wizards suddenly at Hogwarts. It's only a matter of time." Dumbledore answered, "And for the problem of meeting with each other. There's the room of requirement. It was thought to be destroyed by fire, but I have been working on recreating it, however, I fear it will never be the same," I suppose that was why Dumbledore looked so frail and wasn't able to tend to some of our matters. He had his hands full with a lot since her revival.

"The place where the Order of the Phoenix as well as Dumbledore's Army met?" I confirmed. Dumbledore gave a nod, "It's smaller, doesn't have what it used to, but nonetheless, is still a small secret space for you three to meet," He rummaged around in his desk bringing out three bracelets, he had each of us one. "Several people know about the rooms of requirement, however, they are unaware of my attempts. Actually, I think I've improved some part of it. The old version, most could enter it, such as Draco Malfoy, and even Voldemort at one point. Now it is specialized so only those who had one of these can enter,"

I placed the bracelet on. Immediately, it shrunk to the size of my wrist. It was made of some sort of material that seemed like silver, hanging from the middle was a glass Hogwarts crest in full colours. I looked over to Percy, he was dangling the bracelet from his hand as if expecting it to turn into a weapon. Dumbledore raised his wrist to show us his own bracelet. "These will allow you to access the room of requirement whenever you need, please pardon the state of the room though, I'm still working on that. Rather than say what you need to use the room for like the old version, clasp the crest, close your eyes and concentrate hard on think hard on going to the room of requirement. It's similar to a Portkey, only that it isn't your instant touch that brings you there. Do you know what a Portkey is?"

"No," Percy and Nico answered as I said yes.

"I'm sure you'll find out about them soon, we have other topics we must touch on. There are some precautions you must take," Dumbledore warned, "Make sure you can't be seen when you use it. Also, try not to go very often, it'd be strange if you all disappeared most of the time," He slipped his long sleeves over the bracelet hiding it from view, "Keep it hidden, I don't want others to know,"

"One more thing," Percy said, as he finally put the bracelet on. "Should we continue to conceal our demigod identities? I mean, after that confrontation with Bellatrix, I think some of the other students are suspicious,"

"Well, more suspicious than they are already," Nico added. Dumbledore nodded, "Harry and his friends have been known to investigate things, but still I feel it is not the right time,"

"Yeah," Percy said, "Imagine talking to Chiron and telling him that we let the secret slip out not a week after we left," Dumbledore suddenly smiled, "Would you like to speak to him?" Dumbledore went to the side of his desk where there was a relatively large drawer with a lock on it and opened it after casting Alohomora. Inside of it was a couple of pouches of drachmas. Drachmas were greek currency, they could be used for various purposes, such as iris messaging, when you throw them into a rainbow, you can see someone else.

"Chiron sent them over," Dumbledore explained giving each of us a pouch. "He presumed that you might need them. If a student did manage to come into my office and open the drawer they'd most likely assume it was a large set of galleons. Do you wish to contact Chiron?" It was a consideration, though we had only been here basically a day after we left Camp Half-Blood. Were the tiny pieces of information we had gathered enough to call them? We looked at each other, I shook my head, it was too soon, not enough knowledge about the situation. We nodded in agreement.

"Thank you Dumbledore," I responded, "But I think it'd be best when we have more of a lead on this case. We haven't been here long after all," Dumbledore nodded and shut the drawer locking it. "Very well. It is late now, you should return to your dormitories. You still have classes tomorrow,"