A/N: Whew, this is long. It took forever to do! But anyway, here it is. Caution: what you are about to read might possibly be OOC, very silly, and a little bit unlikely. What can I say? It's a Prank War. Prank Wars reveal people's true colors, so of course it will be OOC. :)

This takes off right from the end of the last chapter, no skip or anything.

Disclaimer: I don't own this. The real writers would never do something like this. *laughs away into the sunset*

Then It's War!

That same night of the Incident, I talked to the Stolls.

"I don't know, Percy," Connor Stoll said over the IM. "We're pretty busy."

"Yeah," Travis confirmed. "Totally busy."

I rolled my eyes. "With what?"

"Uh, stuff," Connor said intelligently, looking at Travis. "Secret stuff."

"Guys, I think we all know you're not busy." I knew what they were trying to do. The Stolls wanted something from me in return, or they were just trying to stall to make it seem like they would help me with great reluctance.

"You don't know that!" Travis argued. "We could be busy training!"

"You guys could never be busy training." I shook my head. "Come on, guys. A chance to help me prank some of the Avengers."

"I don't know," Connor said reluctantly, drawing out a few syllables.

"If you guys don't help me, I'll tell Katie it was you that changed out all of their gardening tools with chocolate ones that melted everywhere."

"Oh, come on!" Travis complained. "How do you even know about that?"

"Ears everywhere," I smiled. "And eyes." Connor shook his head.

"Yeah, alright. We'll help you," he consented. "Did you have anything in mind?"

I grinned. "Oh, I've got a few ideas. Meet me in the park tomorrow at two o'clock."

-o-o-o-o-o-o-o-

"Man, we couldn't do this in that awesome tower?" Connor asked. His hair bounced as he walked, and he and Travis' eyes were gleaming with excitement at the prospect of my Prank War. "The one time we've got a chance to actually get in."

"He's got an AI," I explained. "Artificial Intelligence. Jarvis, his AI, would totally tell Tony and Clint what was going on if I was in the tower because I know Tony would ask him to get ahead of the game. I'll have to have you guys over a separate day when we're definitely not having a Prank War so I can show you around. It's fantastic."

Travis sniffed and then frowned. "Do you guys smell that? It smells a little weird over here."

I heaved a deep sigh. "It's probably me. You wouldn't believe what they hit me with."

Travis and Connor nodded wisely. "So this is an act of revenge," they said more or less at the same time.

"Right," I said. "So shall we get started, my dear accomplices?"

"We shall," they grinned. Travis smirked. "Anything to help my wonderful smelling friend."

"Me. Telling Katie. You dying."

"Oh, come on, Percy!"

-o-o-o-o-o-o-

The rest of that Tuesday, I didn't do anything, really, except smile at Tony, Clint, and the others. No doubt they thought I had gotten completely insane, but I was pretty sure Clint and Tony were a little anxious to see what I had cooked up for them. Technically, I was making them wait a little longer to "put them out of their misery," as Bruce said, than they had for me. I figured I was totally justified in it, though. Besides, if I did the prank today, it wouldn't work out. I didn't even have all the stuff yet, but that was the Stolls' job. I was sure that Tony had me on a near constant watch since the Incident.

No, the day of Revenge actually came on Wednesday. It wasn't in the morning like my prank had been, either. I made them wait out the whole day until mid-afternoon, actually, around three o'clock. Just as me and the Stolls had planned.

The Stolls had found a way to help me set up all the stuff the night before, unbeknownst to the other Avengers. We had even reset the cameras on Jarvis. It wasn't permanent or even very well covered up, but it would do until after the prank.

I walked into breakfast that morning feeling fresh and rejuvenated. Today was going to be a great day. I noticed with no small amount of uncontained glee that Tony and Clint hadn't showed up for breakfast.

I went on about my day normally until it hit three o'clock. Then, I began to get excited. I sat down in the living room and propped my feet up on the coffee table. "Jarvis?" I asked, leaning back comfortably in the cushions.

"Sir?"

"Where are Tony and Clint right now?" I tried to stop my smile from growing any larger, but I could barely contain myself.

"Sir is currently in his workshop and Mr. Barton is in the archery range 'venting,' I believe," Jarvis answered.

"Begin sequence Outsmart Tony and Clint and Get Some Sweet Revenge, please. Don't worry, this won't harm anything but their pride, Jarvis," I said. The name was a mouthful, I knew, but I wanted to see Tony's face when he searched Jarvis' database and saw the protocol's name later.

Immediately, the TV came to life with a split image of Tony and Clint in the workshop and at the archery range respectively. They each got a notification from the other to meet in a meeting room on the forty-fifth floor of the tower to talk about "something important."

I smiled as they both went down to the meeting room. Clint got there before Tony and waited a few minutes until Tony arrived. While he and I, even though he didn't know it yet, were waiting, the rest of the team came in and paused at the door before coming to sit on the couch.

"What's this, Percy?" Steve asked lightly.

"Just watch," I said enthusiastically.

"What was that about not getting back at them, again? Something about it 'not mattering'?" Natasha said slyly.

"Shhh," I said. "It's about to get good."

And boy, did it get good.

Tony sauntered into the meeting room and sat down on the table, the split image on the TV finally becoming one as both of my targets joined into the same room. "What did you want to talk about, Birdbrain? I was busy." Tony squinted. "If this is about that prank Percy's gonna do, then I don't know. I haven't heard anything."

Clint frowned. "I came in here because I thought you had to tell me something, Tony."

Tony froze. "I came in here because I thought you had to tell me something." They both stared at each other for a moment later before lunging for the door, which was, of course, locked by now. "Crap!" Clint said frantically. "It's a trap!"

My laugh was slightly manic, I wasn't going to lie, but I still ignored the glances from the rest of the team. "Here we go!" I said loudly.

"Hello, my dear, fellow teammates," a pre-recording of my voice sounded out in the room as the duo tried frantically to find a way out of the room that didn't include jumping out of the window. "You have made the costly error of initiating a Prank War with me. You see, I didn't take to well to the whole thing." Glue was squirted out of small guns at Tony and Clint from the ceiling, completely dousing them. "In fact, that's possibly the grossest understatement of the year." Dead bugs began falling from the ceiling, becoming quickly fastened onto the two from the glue. I still wasn't sure where the Stolls had gotten them. "No pun intended on the whole 'gross' thing." You could hear the smirk in my voice. Clint tried peeling back a vent in the ceiling to crawl in to, but it was stuck firm (something I made sure would happen with all of the vents in the building) and all he got was a face full of bugs and glue for his efforts.

"But more to the point, you have waged this war on the grounds that you would win it." Flour exploded out from all sides of the room, just as quickly going away and being replaced by a Mysterious Liquid that stuck to the glue with surprising tenacity, despite Tony and Clint's frantic clawing at it. The Stolls had assured me of the huge amount of discomfort and itchiness it caused ("Two whole days, Percy! And it doesn't wash off, either!"). "Little did you know that you were completely wrong in this assumption. You will lose this war not only because I am pure awesomeness personified," my recorded voice paused, and I mouthed the next words with it, "but because I have brought in two sons of Hermes that are, by chance, brothers and masters of pranking. Say hello, Travis and Connor."

"Hello, Travis and Connor!" the Stolls chimed in cheerfully.

"Don't worry about me not catching this, either, because there's a live feed in the living room for me to enjoy. Also, Fury and a few other SHIELD members get to watch, too!" I laughed. Right about now (after the whole sons of Hermes thing since not everyone in SHIELD knew about gods; they would only see the actual prank), TVs were coming on all over SHIELD. "And by a few others, I mean everyone who's in the break rooms with a TV at SHIELD. Please enjoy my dear friends screeching as I prank them badly, everyone. And to Tony and Clint"—here the two in question looked up, faces scared and horrified—"good luck. If you hadn't noticed, Jarvis has been disabled for your floor, so no luck there, for sure. Also, you suck, and this revenge is so, so sweet. Love, Percy." My voice cut out, and the real fun began then.

The others turned to me in shock. "Oh my gosh," Steve whispered in awe.

"Percy," Thor said seriously. "If you put your wit to it, I do believe you could wipe out the entire world. I am glad you are on our side."

"We're just getting to the good part," I said, bouncing on the couch. "Watch this, guys!"

Various other things were thrown at Tony and Clint as they tried to take cover underneath a table. It didn't work however, seeing as the spray guns me and the Stolls had hooked up squirted from all ranges and areas. Even as they built up a barricade of chairs, they were bombarded with drool from Mrs. O'Leary, something that smelled like the bottled stink of all monsters in the world, and various other liquids that the Stolls had perfected and wouldn't under any circumstance tell me what was in them.

Finally, Tony and Clint gave up (they were basically being slaughtered, and it was fantastic) and scrambled for the door. They looked ridiculous with everything sticking to them because of the glue; they even had parts of the cushioned chairs on them from where they had gotten stuck on and ripped away. Tony managed to jiggle the lock open, and he and Clint ran out into the hall. I smiled. They took a hallway to the right and began sprinting down it. "You see," I said amicably to the others, "the entire floor is tricked out. Whichever hall they choose, whichever room, they're gonna get slammed. It's just a surprise."

As the two ran, they stepped right into the first trap. Each of their feet stepped into an invisible circle and it hoisted them by their foot upside down from the ceiling. They yelped in alarm and immediately got a mouth full of rotten vegetable juice mixed with sea water. They spit it out and gagged. "Not funny!" Tony yelled towards the ceiling. Clint focused on trying to untangle his foot from the trap. Tony looked down the hall on the screen and paled.

He reached over and tapped Clint's shoulder repeatedly. Clint slapped Tony's hand away. "I'm a little busy, Tony!" he said irritably.

Tony shook his head numbly from his inverted view of the world. "You might want to look at this."

Clint sighed and hung back upside down. His eyes widened comically as he spewed curses. Because coming right at them was a tide of all of their forgotten prank materials. It hit them pretty hard, and just as a dumpster was wheeled down the hall behind their old prank materials on the line I had rigged pulling the dumpster, the line snapped on Tony and Clint's traps and they fell face-first into the gunk.

They jumped up hurriedly, all kinds of random objects sticking to their body as fell out of the dumpster. "Ew ew ew ew ew ew ew!" Tony chanted.

They ran from the hall and down the one on the left. "Aw man," I said. "I wish they would've gone down the other one. I like that one better."

This hall they had chosen was layered with unseen punching mitts that, when you passed by, lunged out an unseen panel in the wall, knocking you into the opposite side, which would consequently squirt you with filthy mud. They got knocked around pretty hard since they didn't know at what height or when the punches would rain down on them. Of course, Tony got hit way worse than Clint, seeing as he wasn't a trained assassin, but Clint still got walloped a good few. There was an unseen trip wire at the end of the hall that immediately spilled them into a small pool, filled with green slime and bits of trash.

"How the heck are we supposed to get out off of this floor?" Clint panted, spitting out a banana peel.

Tony's legs waved for a bit in the air before finally getting himself right-side up. "How the heck should I know?" he demanded.

Clint rolled his eyes and dragged Tony up to his feet outside of the pool of disgustingness. "I knew we shouldn't've pranked him so bad. I knew he was gonna kill us."

"Freaking tell me about it. How did he even get all of this installed so quickly? Jarvis should have alerted me," Tony peeled off a piece of rotting meat from the side of his face. "Crap, I'm torn between disgusted at myself and admiration at this kid. Honestly. DUCK!"

They ducked just as a giant pendulum swung down at them. Once it swung back overhead, they began walking again until a section of the wall, padded of course, swung out quickly and smashed into them. Not even Clint could dodge it. It ejected gross liquids as well. The Stolls and I may have gone overboard with the whole Mysterious Liquid thing. Then I shook my head. You couldn't go overboard on Mysterious Liquid in a situation like this.

They took another turn right and cautiously stood in the hall, looking around them. "I don't see anything," Tony said. He snorted. "That doesn't mean anything, of course."

"You're telling me," Clint said exasperatedly.

Small rodents started spilling out of holes appearing in the side of the wall. Tony and Clint evaded them well enough. They tried jogging through the hall only to have a divider spring up, too tall for them to jump or climb over. Clint attempted to but ended up slipping (the entire divider was coated in Vaseline) and falling onto the floor. The other end of the hallway was blocked off, too. Tony frowned and helped Clint up. Tony shrieked as a rat crawled over his shoe and latched onto his jeans leg. Tony flattened himself to the divider and shook his leg until the rat fell off. After about two minutes of avoiding large rats that looked more like small raccoons and mice, the divider opened and they ran out.

I left them in the maze of pranks for another forty-five minutes until most of the pranks had been tripped by Tony and Clint. They got slammed, tripped, drenched with new materials that were both solid and liquid, and all around embarrassed, big time. I removed the lock on the stairs' door by remote control so they could crawl up a few flights of stairs before getting to our floor. I finally heard the door fumble open from a distance and turned around with a smile to wait for them.

They staggered in, breathing hard. They dripped disgusting juices on the floor and were covered in weird objects, food, and other things I didn't want to examine too closely. It was wonderful. "Good afternoon," I said pleasantly and innocently. "Did you have a good day?"

Tony shook his head wordlessly and waved a hand in my direction, like he was shooing me away. Clint sighed heavily and made his way stiffly to his room. Tony ambled over to his room and slammed the door.

"I wonder if they learned their lesson?" I asked. Natasha, Thor, Steve, and Bruce looked at me with raised eyebrows before going to the kitchen. I went into my room and immediately called the Stolls.

"How did it go?" Connor asked eagerly.

"Flawless," I praised. "Thanks, guys. Really. I totally owe you one after this."

Travis waved it off. "No, you don't. We haven't done something on that big of a scale since never. It was awesome doing it."

"You can thank us one way, though," Connor said.

"Like what?"

"Send us the video? We swear it won't go viral."

I laughed so hard I cried and fell off my bed.

Needless to say, Tony and Clint surrendered the next morning good-naturedly (they still stunk and itched everywhere) and without a hint of malice towards me, and the Prank War was over. They glanced at me suspiciously for the next week after, though. I was never pranked again, and they made sure to keep it just between themselves. They still hear about it from the people who work at SHIELD to this day, and especially from Fury. I grin every time I hear about it.

Like I said before, revenge is so, so sweet. Much sweeter than victory, anyway.

A/N: Still not quite sure I like this very much. I liked the other chapter better, but whatever. So, Percy got his revenge and the Stolls had fun! The next chapter will be the Breakdown chapter, I believe. In the meantime, let me know what you thought! Thanks for reading, reviewing, favoriting, and following. You're all wonderful.