"It's my move, so I'll set one card facedown and now I'll attack your life points directly Jack Atlas." Devack said. "That ends my move."

Luna 2000 Jack 1650 Devack 7000: "It's my move Devack." Luna said. "I activate the magic card Polymerization."

"I knew this was coming." Devack said. "It won't be enough to defeat me."

"We'll see about that." Jack said. "Go ahead Luna."

"Right, I fuse Ancient Fairy Dragon together with Jack's Red Dragon Archfiend." Luna said calmly. "The guiding light of the one true ruler descends from the heavens! Life itself fuels the flames of your undying soul! Fusion Summon! Come forth, Ancient Emperor Dragon!"

As Luna said that, a glowing blue dragon appeared above her as golden marks slowly etched themselves onto its torso, claws, and wings.

"That was a foolish decision Luna, your new dragon only has 2700 attack and defense points." Devack said. "You would have been smarter to keep your two dragons instead of combining them into that thing."

"You shouldn't underestimate our new monster Devack." Jack said.

"I play Ancient Emperor Dragon's special ability." Luna said quickly. "I pay 2000 life points to return all cards on your side of the field to your deck."

"You can't pay that cost, you only have 2000 life points." Devack said. "That ability won't work."

"Actually not only can it work but it will." Jack said. "Ancient Emperor Dragon is a fusion monster of my Red Dragon Archfiend and Luna's Ancient Fairy Dragon. In other words we both pay 1000 life points to activate its ability."

"What?" Devack asked nervously.

"You heard me, and without your field spell protecting your Earthbound Immortal it returns to your deck too." Jack said calmly.

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"You felt it didn't you Carly?" Roman asked calmly. "The signers are even more powerful than we realized."

"Yeah, I'm not even sure if that will be enough to stop them." Carly said nervously. "Their dragons are too powerful."

"I know, however the only hope we have to stop them is that creature." Roman said. "The outcome of our battle will be determined by destiny."

"I know, but something feels bad." Carly said. "If we lose you know what could happen."

"Yes, I do." Roman said. "That's why we must do everything we possibly can to avoid losing."

Just as Roman said that, their marks began glowing.

"What's that feeling?" Carly asked fearfully.

"I have no idea." Roman said nervously. This power, it's even more dangerous than I expected.

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"They have a huge advantage thanks to their dragon." Leo said excitedly.

"Maybe, but the duel isn't over yet." Yusei said. "I have a feeling we haven't seen the last of that Earthbound Immortal."

"What are you talking about Yusei?" Akiza asked only for Yusei's limiter to start flashing crimson. "Wait, what's going on?"

"Dragon of darkness born from my very being! Unlock the seal on your ancient powers! I grant you my power to end this battle! Come forth, Immortal Cosmic Dragon!" Yusei said coldly as his dragon suddenly appeared above him.

"Huh, Yusei?" Leo asked hesitantly.

"First was Ccapac Apu, then Ccayayhua. Now Cusillu will…" Yusei said before suddenly collapsing as his dragon disappeared.

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"Yusei, what happened to him?" Luna asked nervously.

"I don't know, but I bet taking down this dark signer will provide some answers." Jack said.

"Well if you're sure." Luna said hesitantly. "Ancient Emperor Dragon attack Devack's life points directly. That ends my move."

Luna 1000 Jack 650 Devack 4300: "It's my move." Devack said. "You may have gotten rid of my Earthbound Immortal for now, but that won't… I pass."

"What have you given up?" Jack asked only for Devack to silently nod. "Well then it's my turn so I'll attack you with Ancient Emperor Dragon a second time. Let's finish the duel and seal the control unit Luna."

Luna 1000 Jack 650 Devack 1600: "If you say so." Luna said before Kuribon started panicking. "Huh, Kuribon?"

"What's got him so scared?" Jack asked.

"I don't know." Luna said nervously as Kuribon started whimpering. "Wait, I think he's scared of Yusei."

"Yusei, why would he be scared of Yusei?" Jack asked before glancing back towards Yusei. "Wait a minute that might be it."

"What do you mean?" Luna asked.

"If I'm right, we'll know what's going on as soon as Devack is defeated." Jack said.

"Well, if you think it'll help." Luna said. "Ancient Emperor Dragon attack Devack's life points directly."

The moment Devack's life points hit zero, a purple glow flew out of his mark and into the purple dragon mark on Yusei's arm.

"Ok, this is really starting to freak me out, Yusei isn't a dark signer is he?" Leo asked nervously.

"No, but there's something going on." Jack said. "Those Earthbound Immortals must be combining with Yusei's dragon."

"Jack's right, during the duel Yusei mentioned that Ccapac Apu was first, and that Ccarayhua was second." Akiza said thoughtfully.

"Wait but if that's true then what's going to happen when we beat the last two dark signers?" Luna asked nervously.

"I don't know Luna, but if we don't stop them it's the end of the entire world." Jack said. "Then again I might have an idea on how to stop it from happening."

"What are you thinking Jack?" Leo asked.

"You and Yusei will duel the next dark signer, but before you summon your fused dragon you need to get Immortal Cosmic Dragon into the graveyard." Jack said.

"Would that really work though?" Akiza asked. "Yusei didn't duel against Misty or Devack but that purple glow still flew into his mark."

"I know, but unless you have a better idea it's the only option we have left." Jack said. "If we don't defeat the dark signers the world will end so this is our only option."

"I know its just, no you're right Jack." Akiza said quietly. "Come on, we need to wake Yusei back up for his duel."

The moment Akiza said that, Yusei began stirring as his limiter stopped flashing.

(Devack was defeated, but the Earthbound Immortals seem to be fusing with Yusei's Immortal Cosmic Dragon. Next chapter the signers will arrive at the fourth tower, and an unexpected meeting will occur. As always any reviews or critique is appreciated.)