Really sorry it took so long to get this chapter up, but I've been on vacation and wrote this chapter ASAP.

***THIS IS A VERY IMPORTANT AUTHORS NOTE. HIGHLY SUGGESTED YOU READ:

So… I've been thinking about my stories, my OC Carly, her own story/background, and decided to change some stuff. Like her name for instance.

I'm soooo sorry if this confuses anyone/ makes you hate me, but a whole bunch of things completely changed in my mind. I'm going to post some more info about it on my profile, so to be informed go check that out. It has more info on my OC and such. (Thanks so much Doctor Skittles on helping me with the Mary Sue problem)

So, yeah, some big changes to come annnnddd a new story hopefully coming out this month. But I'm still working on this story (and if you go back to both stories in this Psych AU (again, sorry) you'll see I've changed some things) There's a lot of work ahead of me, and I hope that I'm enough of both a dedicated writer and a good writer to keep this new project I'm working on going.

What's this new project, you might ask? (Or not, idk, I'm not stalking you) Weeellll, it's mostly me rewriting the PJ books to fit Percy's twin sister in it.

Can we get one thing straight: I know there are (I'm pretty sure no one else added to this list) two of these already going around, but I'm going to write one as well because I've got my own ideas to make. Different love interests, different action- mainly a bunch of different stuff. I apologize times a million if anything in my story is similar to the other people, but I know mine will have a whole bunch of different factors. Those other stories are amazing, and they inspired me to make my own.

Thank you for your understanding. You'll see some stories from me soon enough! And look for the changes. PM me if you feel the need ^.^

(For anyone who read the story with 'Carly' as my OC, please keep in mind that I have changed her name. Thank you)

Now, ON WITH THE STORY! Sorry, not a ton of action in this chapter- definitely the next one though :)

And thanks times a billion to all the people reading/ reviewing/ liking/ favoriting! YOU GUYS ARE AWESOME

Disclaimer: I do not own Psych or Percy Jackson. They belong to their respective owners

Shawn POV

Shawn and Juliet walked inside the office where they found Gus and Nico sitting side by side, Nico hogging the popcorn, as they watched The Lion King. They were right at the part where Mufasa fell off the cliff into that herd of cow things. Nico was watching with an unimpressed look on his face as he shoved a handful of popcorn in his mouth, while Gus bawled his eyes out.

"Guys!" Shawn shouted. The movie was at an unnecessary level of volume. "Turn the movie down or something!"

Nico complied, getting their remote buttery in the process. Shawn wondered if that was intentional, "What? Weren't you guys on a date?"

"Bigger things came up," Shawn replied gloomily. He quickly backpedaled once he saw Juliet's expression, "Well, they were only slightly bigger. I mean, you know, being on a date is the best and biggest thing-"

"Shawn," Juliet rolled her eyes, "calm down. Just tell them."

The door burst open and Lassiter's heavy footsteps flooded the room, "What is taking so long?" he demanded. His gaze turned to the TV, "What are you watching?"

Nico and Gus stared at Lassiter, obviously not expecting the man to be in the room. Gus cleared his throat and stood up, "Lassie? What are you doing here? What's happening?"

"Really?" Lassiter deadpanned. "You haven't told them?"

"Dude, we just got in the room," Shawn defended. "You need to learn to be more patient."

Lassiter's hand slowly made its way to his jacket pocket. Shawn knew the man probably had dreams about shooting him, but hey, he couldn't in fear of losing his job. "You need to learn to be less annoying."

"You need to stop watching cops."

"Spencer, I will shove this gun so far up your-"

"I repeat," Gus interrupted. "What's happening?"

"We found it!" Shawn threw his hands in the air and waved them around. "Dude, we found the base! Well, I found it, but who cares about that?"

"You found Gaea's base?" Nico asked suddenly looking more interested. He placed the bowl of popcorn on the couch and stood up, "Well what are we waiting for? Let's go!"

"Hold up!" Lassiter objected. "Last year, Attie explained that there were monsters at Malinda's house. What if there are monsters at the base? Normal bullets won't be enough and I want to shoot some of these monsters, and let my bullets have an effect on them."

Nico reached in his jacket pocket and pulled out the Celestial Bronze bullets Hermes gave him. There was a fairly large amount that he pulled out, way more than Shawn remembered.

"These are Celestial Bronze," Nico stated as he placed the bullets on the table. They clanked loudly in the silent room, "You and Juliet can use them."

Lassiter picked one bullet up and examined it, "These… these are the bullets for our guns. How did you-"

"A god delivered them," Shawn spoke as he stared at Nico. "I didn't know there were so many."

"There wasn't," Nico said. "Hermes must have put a spell on the original three so that they multiplied."

"I'm sorry, Hermes?" Juliet asked.

"Oh yeah," Gus suddenly looked very happy. "We met a god before."

Lassiter rolled his eyes, "We should probably get going." He took his gun out and began swapping the bullets. Juliet came over and did the same. "Now, when we get there, I don't want to see any of you. Got it?"

"What about me?" Nico objected. "I have a sword."

"Any of you!" Lassiter barked. "I doubt we're the only ones with a gun, and you aren't to be in the line of fire. Do I make myself clear?"

"So what are we going to do?" Nico huffed as he crossed his arms like a stubborn child.

"You can look for Attie," Juliet suggested. "We'll be the distraction while you guys find her."

"O'Hera," Lassiter whined as he looked at Juliet. "Why are we the distraction?"

"Because we have the guns," Juliet cocked her gun for emphasis. She looked at everyone in the room, "Now I think it's a good time to blow up Gaea's operation."

§§§§§§PaGe BrEaK§§§§§§

Shawn was feeling jumpier than usual.

Whenever he and Gus made their way to face the murderer, or murderers, Shawn always had a little anxiety building up inside of him. Fear? Meh, sometimes. Usually his ADD allowed his mind to wonder to other things, instead of the task at hand, which always made things a little easier.

But now, all Shawn could think about were the monsters he'd dreamt about. They were all so ugly, huge, and powerful, Shawn wondered if they had a chance. At least he, Gus, Lassiter, and Juliet were okay- they were mortals. That just left Nico and Attie, the two demigods.

But what if there were monsters? The Ball Ski snakes from last year didn't seem to have a problem with Gus and Shawn. One was ready to eat his best friend.

Shawn just hoped that wasn't the case.

They pulled up to the house Shawn saw in the file. It was nighttime, and the lights around the house cast an almost eerie glow. He didn't know how the mini lanterns could cast an eerie glow, but they were doing a pretty good job at it. Lassiter and Juliet walked slowly and cautiously to the house with their guns drawn as Shawn, Gus, and Nico followed. Nico held his skull ring in his hand, ready to throw it in the air and turn it into a sword at a moment's notice.

When they reached the entrance, Lassiter turned the door knob. The door swung open.

The two detectives shared a look before walking into the dark room. Almost immediately, the lights switched on, cause Gus to jump slightly. Shawn shrugged at the look Nico gave him before walking into the house.

The inside just screamed: I'm rich.

There were at least five couches in the living room alone. The largest TV Shawn had ever seen was hanging on the wall adjacent to them. The kitchen was the size of a small yacht with a table that sat maybe fifty people at it. The best line of kitchen equipment was set up in the kitchen and the fridge was stocked with the best food. The other floors held bedrooms, a library, and even a game room. Shawn kind of wished he could stay there forever.

They searched the house for an hour, quickly discovering that no one was home. Shawn didn't question it, happy that they wouldn't run into any bad guys. But there wasn't anything… evil in the house. There had to be a trap door or secret room or something.

Lassiter of all people found it. Even if he didn't know he found it, he found it.

Everyone gathered in the huge living room when Lassiter exploded. "This is it? Spencer, there's nothing here!"

"We just have to keep looking," Shawn stated, sure that they were in the right place.

"Nothing is here!" Lassiter growled. He marched up to the only closet in the area and pulled it open, revealing cleaning supplies. "It's just an average household-"

"Wait!" Nico suddenly screamed. He jumped off the couch and sprinted to the closet and started examining the right side of the wall.

Shawn, Gus, and Juliet joined the young demigod. He was looking at a piece of metal that was bolted on the wall with a triangle, ∆, clearly carved out on it.

Gus tilted his head to the side and ran his fingers on the mark, "It's a delta. The fourth letter of the Greek alphabet. "

"What's that got to do with anything?" Lassiter asked in a very un-nice way.

In response, Nico swatted Gus's hand away and let his hover above the triangle, "It needs the touch of a half-blood." Nico's pale fingers made contact with the metal, making the delta glow black. The demigod jumped back as the walls began to shake, bumping into Lassiter's chest and pushing them both back. The walls continued to shake and Shawn watched with jaw slack amazement as stairs carved themselves out of the closet floor.

Once the shaking subsided, Team Psych was left to stare at the very dark passageway leading underground. Juliet kept her gun trained on the bottom, as if a monster would jump up and devour them all. Which wasn't entirely unlikely.

"Uh, after you," Gus said.

They went in a single file line, the staircase too narrow to walk any other way. Lassiter was first down the hole with Juliet right in tow. Shawn went after them and before Nico could follow, Gus was shoving his way to the middle. He never liked to be first or last in line- if you were in the middle then you had a less chance of death. Or at least that's what his research brought up. And most movies.

The staircase seemed to go down forever, and Shawn felt as if the ceiling was going to collapse on them. He gulped and continued walking, trying to expel those thoughts.

Shawn didn't have a watch on, and he really didn't feel like getting his phone from his pocket, but he assumed it had been about six minutes before they reached the bottom. When everyone exited the staircase, Shawn took a moment to examine the area. And it was a very large area.

The walls were completely made of cement, reaching high above and curved into a dome shape. It looked like the place went on for miles. There were mostly wooden crates stacked on top of each other everywhere, the occasional person walking around the area.

Lassiter and Juliet grabbed Shawn, Gus, and Nico's arms and shoved them behind one of the crates. Shawn rarely appreciated being manhandled, but decided that this could be an exception. After all, he could barley move himself.

"Alright," Lassiter said, "here's the deal. We're going to go and draw their fire- keeping them away from you."

"There was a hallway down there," Juliet pointed over to the left. "It looks like the only other place you can go in this room. Go down there and look for Attie."

"Hurry up," Lassiter grunted as he stood up. "I don't like being underground."

Nico nodded curtly and before Shawn knew it, the boy was sprinting in the direction of the hallway. Gus and Shawn just managed to stay right behind him, and soon they were standing at the entrance of a short passageway.

Nico activated his sword and turned to the closest crate. With a quick flick of his wrist, the top was popped open. Shawn peered inside, surprised to see so many weapons in the crate. It was just… stacked with javelins.

Nico cursed and picked one up, "I'm not a fan of these… but maybe you two can use them."

He handed one off to Gus who took the item and held it so tightly his knuckles turned light. Nico gave one to Shawn, who examined the flimsy piece of metal in his hand.

"Won't this, I don't know, break as soon as we use it?" Shawn asked.

"Don't underestimate it," Nico warned. "That thing is stronger than your Psych building."

Shawn didn't say anything as they followed Nico deeper into the base. More crates were lined up in a much more orderly fashion than the other room. If each of those held as many weapons as the other crate….

They stepped into the light and glanced around the room. Something whizzed past Shawn's ear, a slight whoosh being heard from the close proximity of the object. Shawn glanced behind him and almost fainted. An arrow was buried in the wood of a crate.

A man jumped down from a pile of crates, ominously uncovering himself from the shadows. His body language just screamed cockyness. He had short blonde hair, large muscles, and held a bow in one hand with the quiver full of arrows on his back.

"You should not have come," He stated very simply as he surged forward and swung an arrow at Nico's face.

Shawn didn't even know how he did it. One minute his brain couldn't even process the fact that a bad guy was standing in front of them with weapons, and the next the javelin in his hands was being swung in the direction of the stranger's face. The guy reeled backwards clutching his nose, blood leaking through his fingers. Before he could even be mad that a mere mortal had just hit him, Nico brought the hilt of his sword down on the guy's head, making the guy crumble.

"Nice reflexes," Nico muttered simply as he continued into the room. Shawn just nodded, sharing an astonished look with his best friend.

Their little victory was short lived, however, when the alarm started blaring. Guess Juliet and Lassiter had gotten their attention. They shared a look before running to the opposite side of the room where two more hallways sat side by side. Nico looked down each of them, his face showing the little patience he had.

"The one on the left?" Shawn asked.

Nico growled in annoyance but didn't move. A few seconds later and a very distant and muffled, "What? Are you idiots under attack?" was heard down the right side tunnel.

Nico immediately tore down that hallway, Shawn and Gus excitedly following. That had been Attie. They were close. Unfortunately, about halfway down the tunnel, they could see silhouette of something large moving very fast in their direction. As it got close, Shawn could make out details- and he really wished he couldn't.

First of all, the guy was dressed in a loin cloth only wrapped around his waist, allowing his extremely hairy legs and chest to be exposed to the world. He was fat, with large arms and a brutish face. But what really stuck of was his eye. Yup, eye. Through the process of elimination, he deuced that it was a Cyclops.

Shawn and Gus yelped and slowed down, but Nico just sped up and pointed his sword so it was parallel to the ground. With a battle cry, the two met up in the middle. An explosion of yellow dust was the result. Nico didn't wait to congratulate himself or anything as he continued on. Shawn and Gus did as well, hoping desperately not to lose the only one of them that knew what he was doing.

They took a sharp turn and was immediately greeted with the sight of a large man standing next to a closed door. He looked normal enough, but god, his muscles were larger than Shawn's head. And he really doubted that the guy was on steroids. The guy looked up, startled, just in time for a rock to land on his face from above. Shawn looked at Nico to see his hand pointing above the guy's head, a broken chunk of rock hanging from the ceiling.

Nico ran up to the door and pulled it open, immediately ducking a fist that came flying at his face.

"Oh gods! Nico?" Attie asked as she barreled out of the door and collected the boy in a hug. Shawn was glad they finally found her- just a few retracing of their steps and they could be home free. Out of the creepy underground place that gave Shawn the jitters.

Nico pushed away quickly, "Attie, we gotta go. Lassiter and Juliet are fighting-"

"Nico, we need to do something first," Attie cut him off, a determined look on her face. "There's a power source here that's helping Gaea stay put. We need to destroy it."

Nico nodded without any questions and pointed farther down the hallway, "Should we check down there?"

Attie smirked, "Yup," She turned to Shawn and Gus and offered them a wide smile. "Glad to have you guys on my side. Come on, this thing is almost over."

Without waiting for a response, she grabbed her Pegasus charm and soon held her Celestial Bronze sword in hand. With a quick nod to Nico, the two of them were running down the hallway. Shawn and Gus followed them, the option of making it back towards that staircase that led up to the awesome house gone in their minds. Besides the fact that the Attie and Nico might need their help, Shawn and Gus probably wouldn't get out alive on their own anyway.

By the time they saw the light at the end of the annoyingly long tunnel, Shawn's legs were ready to jump off his body and into lava. They burned, and the sound of his heart beating echoed in his head. Geeze, he really needed to exercise.

They reached the end and each of them came to an abrupt halt. In the back of the room stood a large glass dome, a pink and black mix of colors swirling around with shots of electricity shooting out of the color mass and connecting with the glass wall. The thing reminded Shawn of those electricity balls that when you placed your hand on them, your hair would stand up. A powerful humming noise echoed around the cavern, and Shawn was ready to take a step back from the sheer power. But that wasn't the only thing that made him want to take a step back.

Surrounding the ball was at least a hundred bad guys, each facing the four of them. They ranged from monsters to demigods, none looking too pleased that four heroes were standing in an obviously highly confidential area.

Shawn resisted the urge to say, "Oh, we were just looking for the bathroom," and instead allowed his jaw to pretty much fall to his feet. Attie and Nico positioned themselves in front of them, each in a battle stance. The silence in the room hung in the air, tension so thick you could probably cut it with one of the very pointy swords the bad guys were holding.

But it only took a few seconds before Nico and Attie sprung into action, throwing themselves into the mass of evil people. It was about that time that Shawn decided that he was going to take next week off, sleep in, and probably do nothing but eat and breathe.