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It was a quiet day, or, at least, as quiet as a day can get at a camp where the climbing wall pours lave, dryads roam the forest and fields, and demigods are constantly training. But Percy Jackson and Annabeth Chase, son of Poseidon and daughter of Athena, didn't notice any of it as they hung out by the lake.

Percy was just glad things were back to demigod normal. Kronos was gone, Gaea was gone, the Roman Emperors were gone, and there were no new threats looming. For once, he could just kick back and relax with his girlfriend.

Their day was interrupted, however, when something crashed into the canoe lake, sending a rush of water their way. Percy reflexively deflected it away, keeping them dry.

"Thanks." Annabeth said as she stood up and shielded her eyes. "What is it this time?"

You might think she would more surprised, but things tended to crash into the canoe lake quite often. Just a week before, a giant bronze duck (probably discarded by Hephaestus) had landed and started trying to burning the camp down with its flamethrower bill.

"Looks like some sort of box." Percy said. He held out a hand and the water brought the object, a metal container the size of a microwave, to shore. A few girls, Naiads, glared, annoyed at their lake once again being used as an emergency landing.

"Not Celestial Bronze." Annabeth noted. "Probably not one of Hephaestus's projects, then."

"It's got buttons." Percy examined them. "Season 1, Season 2…they're all labeled with seasons."

"Percy. Annabeth." Chiron trotted up to them. "I hope you can tell me we don't have to dispose of another failed automaton."

"I think we're good." Annabeth said. "Hey, there's a note." She noticed as she moved around the side. Pulling it off, she began to read.

"To whoever finds this, I am writing to you from a universe that will no longer exist. The end has come and neither our science nor our gods can stop it. Enclosed in this box is the series my friend and I created. I am sending several copies out in the hopes that somebody will watch them and our legacy will live on. Hope this dimensional-transporter isn't too damaged. (And no, I couldn't get it to transport living things, sadly.) Sincerely, Wiz."

"An entire universe wiped out?" Percy asked in shock. "What could do something like that?"

"I'm not entirely sure." Chiron admitted. "I only hope that it will stay in that universe and not come here."

"I think we should watch the show." Annabeth said. "It's the least we could do for somebody who's lost everything else."

"Yeah, okay. Sounds cool." Percy agreed.

"Perhaps you should gather the rest of the Seven." Chiron suggested. Looking around at the crowd of curious campers gathering, he spotted Leo, Piper, and Jason, and waved them over. "This seems like something you guys should do together."

"Sure, Chiron. I'll send Frank and Hazel an Iris Message." Annabeth agreed. "Will you be joining us?"

"Not right now. Though I ask that you let me borrow the box when you're done. I would like to see this series at some point." He told her, turning to leave and shoo the rest of the campers back to their activities.

"Sup?" Leo asked. "Got more materials for me?"

"Nope." Percy told him. "Grab a coin. We've got a show to watch.

Later that day, Hazel and Frank arrived from Camp Jupiter. They headed for Percy's cabin, where the other five were already gathered.

"So, what's this show we had to come all the way here to watch?" Frank asked. The other demigods quickly explained how the box of DVDs had arrived and showed them the note.

"That's really sad." Hazel said after learning about an entire universe no longer existing. "I agree, we should honor his last wish."

"Well, let's pop this sucker open and see what it's about." Leo suggested. He reached over and pushed the button for Season 1. The box clicked open, revealing 25 discs, plus a small card. Piper pulled it out and read it aloud.

"Death Battle is a show which pits two characters against each other, examining their abilities, arsenals, and skills to logically determine who would win in a fight. The rules are as follows:

Combatants will possess knowledge of each other only if such is canon to both official universes.

The battle must in in a death. Personality traits that prevent killing will be removed for fairness.

All other character traits, tactics, and attributes are not removed and are attempted to be represented fairly.

Research used is determined equally unless otherwise specified. If non-canon sources are used for one combatant, they will also be used for the other.

"Sounds pretty sweet." Jason said. "I wonder what kinds of fighters they'll use." The Seven began pulling out discs, glancing at the variety of combatants.

"Uh, guys? I found one that's pretty interesting." Percy said, holding up a disc titled Kratos VS Spawn. He read the description to them. "Kratos, the demigod who brought down Olympus, faces Spawn, the demon-warrior who conquered Hell itself. Which God-killing warrior will rise to the top?"

"A demigod?" Hazel asked. "Like us?"

"And one who 'brought down Olympus'." Annabeth noted. "How could a single demigod do that?"

"Well, there's only one way to fight out." Jason said. "Put it in and let's see."

(A/N: And we're off! This series was inspired by several other Death Battle reaction fanfics on this site (I was sad to see epicvictory2025 discontinue the original, but glad to see multiple other authors continuing with the idea). A few things to note. Firstly, the episodes will be grouped by season, but will not be in order. The only thing about ordering that will be consistent is that the finale of each season will be the last episode they watch. Also, it's worth noting that several characters featured on Death Battle (such as Kratos and Chuck Norris) have been referenced in Riordan's books and thus technically exist as characters or people in Percy Jackson's world. However, I'm going to set that aside so we get their reactions to learning about these characters' abilities for the first time. The first reaction is going up right after this. I hope you enjoy!) (EDIT: You may have noticed me leaving out epicvictory2025's name. Sorry about that. I hate when I try to avoid doing something stupid and it leads to me doing something even stupider)