A/N: Hey! So...here it is! Get ready for...(rolls drum)...THE GRAND FINALE OF THE PRANK STREAM!

Camp Half Blood had brought down upon itself quite a normal day. It was a still early in the afternoon and all the Campers were busy with their post-breakfast activities. Well, almost all. Leo was itching to play a prank. That wasn't unusual at all. What was unusual, though, was the fact that this time it felt different. Like JUST a prank wouldn't suffice. He needed something more. And that was when it struck him.

He felt as if a little person had entered his brain and turned on a lightbulb. The most brilliant idea (on his standards) had just struck him. He had to do it! It would get him into trouble. But he HAD to do it! And he would.

By the middle of the afternoon, Leo was holding in his hand a list he'd compiled of the things he'd need for his prank:

- a basket

- a helium gas tank

- rubber snakes

-skittles

- two mini projectors

- a water tank

- a huge neon board

- an extra thick black marker which he already had

- the Apollo cabin's music collection

- melted choco-chip cookies

- toothpick(s)

- Chiron's music collection

- a radio

It was going to be absolutely leosome! It was his biggest Prank Mission ever. And if he wanted said mission accomplished, he needed to get started right that minute. There was still an hour left for lunch and he decided to gather his supplies before lunch so that he could set up the master plan post said lunch.

He started off with the basket. Having taken the very firm decision to make it entirely out of wood, he got to work...but then realized that he didn't have any wood so decided to make the wooden basket out of bronze. To pretty it up, he added a little silver bow to its handle. The basket was put aside.

Next came the helium. After realizing that that best source of helium was, in fact, balloons filled with helium, all he needed to do was fill some balloons with helium from his huge helium tank and transfer the helium into another container. Once he had established his extremely witty idea, he realized that it was a rather long process and decided to just use his huge helium tank directly.

Two items checked off his list. The next that came were the rubber snakes. No work needed there. He already had rubber snakes. Why, you ask? Well, a prankster ain't a prankster if he doesn't have rubber snakes, now is he?

Glancing at his list again, the skittles were next. He opened his secret cupboard and pulled out four huge boxes of skittles. Emptying all of them into a bucket, he brought out this remote-control helicopter he'd made for one of his other pranks. Must be the one wherein he attempted to paint the Hades cabin pink. He hooked the bucket onto the helicopter and that was ready too.

NEXT – mini projectors!

Within twenty more minutes, two minuscule projectors sat on the top of his table, making Leo proud. He then typed a few things out on his laptop and connected it to the first projector. Once switched on, the projector projected said things on not only one wall, but all four walls of the room.

When he tested the second projector, it projected scenes of lightning striking on all four walls. Very good.

NEXT! Water tank.

Leo already had a water tank. And it already had plenty water in it. All he had to do now was make the base of the tank self-destructible. So he attached a very, very tiny Bomb-But-Not-Exactly-A-Bomb (BBNEAB pronounced buh-nea-buh) to its base. This BBNEAB was to be handled via a remote. It would blast and blast the floor of the water tank with it.

Next came the neon board. Leo had no idea how to make a board neon, but he needed the bright colors. So he decided to head over to the dish-washing arena (yes, he called it the Dish Washing Arena) and fill two cups with hot, gleaming lava. His intention was to spread the bright lava onto a simple white board, giving it a gaudy shade of yellow-orange. The plan would've worked beautifully except it failed miserably - plainly due to the fact that Leo had failed to realize that the lava would melt the board. He gave that idea up and resorted to the more boring option – painting the board with some neon orange paint that was kept in his supply closet. Once that was done, he wrote something down on the board with the extra thick black marker and put that aside as well.

Leo now had almost everything on his list that could be obtained within the comforts of his own forge. For the rest, he'd need to wait till lunch.

A minute later, the Conch Horn sounded for lunch. Never had the fire boy been gladder (is gladder a word? It is now) to hear that blasted horn. He grabbed a box of toothpicks and running, he reached before everyone else. A platter of melted choco-chip cookies soon appeared before him, just as he'd wished. The choco-chips weren't gonna stay melted forever and he got to work. Holding a toothpick in one hand, and a cookie in the other, he placed the point of the pick in the center of a melted choco-chip and dragged outwards, thus forming a single line coming out from the top of the chip. He made eight such drags on each chip, thus making the chocolate chips look like little spiders sitting on the top of the cookie. This was done to a total of fifty cookies. There were now ten more left. And of course, he ate them.

Campers were starting to file in now. One by one and in groups. He could spot his friends but grabbed all his cookies and ran for it like a mad man. He had to get back to work. This was Stage 2 of the Master Plan and was paramount to the success of this stratagem. Rushing back to his forge, he dumped the cookies into the basket, conveniently stashed all of his supplies into his tool belt and ran out. All he had at hand was twenty minutes before lunch would be over and people would be everywhere.

Starting with the Artemis cabin, he set up the needful there and went on to the other Cabins. When he was finally done with said cabins, he went on to steal the Apollo cabin's entire music collection and one of their smaller radios. After this, he snuck into Chiron's room with the radio and the Apollo Cabin's entire music collection. He inserted one of the Apollo Cabin's heavy metal CDs into the radio and stashed the rest of the collection up on the shelves as he simultaneously stole Chiron's entire oldie music from them. He then made a second trip to the Apollo Cabin. Almost the same thing was done there. Except that one of Chiron's old-man-music cassettes was put into the Cabin's huge, booming music system.

Once this had been done, Leo had officially completed Stage Two of this Master Plan and still had a minute and a half left.

Immediately, Leo sat down in his forge and got down to work, yet again. An hour and a half later, realization dawned upon our Repair Boy:

He was all done. He was a genius. He was a mastermind. He was awesome. He knew it. Let's see why. He had very successfully developed a mechanism that would ring all of the Cabins' (including Chiron's) doorbells simultaneously. What was so special about that, you ask? Well, when any one camper would open the door, the opening of said door would cause this mechanism to trigger, which would put his Plan into action. Said plan was going to be the best prank in the history of pranks. It was going to be completely incredible. Only one more Stage and then it was showdown.

Sneaking all around the Cabins (including Chiron's), he set up his mechanism. It wasn't hard work and the boy was done in about fifteen minutes.

All that was left now was the wait. The long, long wait till after dinner when everyone was in their cabins, safe and ready to be pranked. He didn't even know how he was going to tolerate the excitement as he waited. He could not wait. It seemed impossible. Anxiety overwhelmed him. But it wasn't necessarily a BAD anxiety. He was nervous. He couldn't be nervous. He was Leo the First. Leo the Great and Powerful. Scratch that – he was PRODIGIOUS! Well, to face the not-beautiful truth, he was terrifically nervous. So nervous he feared he might pee fire. The next half hour was spent trying to discover whether or not it was possible for him to pee fire. But wouldn't that just be an embarrassment? His pants would literally be on fire. And he didn't even need to lie!

Then the magnificent Conch Horn sounded and for the second time that day, Leo was the happiest person on earth to give ears to the sound of the ruddy horn.

He dashed off towards dinner and ordered a ton of stuff. Despite his excitement he ate like a mad, fat cow. Safe to say he ate like Clarisse. Dinner lasted forever. He couldn't wait this long. He was so close! Just some more time and this prank would go down in history.

Forty five minutes later, the dining arena was almost empty and the few campers that were left were getting up to leave.

Leo walked up to his forge, picked up the cookie basket which was now covered in silver wrapping paper and went back out. Taking the decision to check the dining arena to see whether it was empty, he took a detour from his trip to the cabins and discovered the arena empty. Even Chiron had retired to his Cabin for the day. Leo ran off to the Cabins and placed the cookies in front of Annabeth's cabin. He then slowly stepped in the exact center of the 'U' shape the cabins around him made. Excitement, anxiety and nervousness started to creep all over him as if those feelings were a hundred insects crawling over him all at once. Slowly, he took a small metal box with a black button on it, from his tool belt. Post taking a few (ok, a lot of) deep breaths to calm himself down, he pressed the button.

A/N: Ok, so, minor detail. The finale's in two parts. But I've got the whole thing written. So I'll probably update tonight. It's just that it was too long so I had to divide it into two parts. Anyways, hope you liked it so far! i know I probably left you just hanging off a cliff there. But hey, what do you know? By the time you're reading this, the second part might already be up! And, well, again, I hope you liked it. Thanks!