The Cullens go on a vacation to Italy, the whole family. They're going for a week. They're not far from where the Volterra, where the Volturi live. One of the nights there, the second night, they go hunting. But, Jasper and Emmett run into another vampire, two actually. They were hiding out in the woods while they fed on the humans they had taken. One of them continued eating while the other got up and walked over.
"Well, well, well. I'm Casey." He said holding out his hand.
"Emmett Cullen." Emmett said shaking his hand.
"Jasper Hale." Jasper said shaking his hand as well.
"Obviously not from around here." Casey said in a snooty way.
"Yeah, we're on a family vacation." Emmett said.
"Oh, nice. You picked a good place."
"Yeah, we've been here a few times, it's nice." Emmett said.
The color on their eyes caught Casey's attention as a cloud moved revealing the moon and its light dazed on them.
"Hungry are we?" He said sarcastically.
"We were hunting when we came across you." Jasper said.
"I see. Well, be on your way then."
They shook hands again and left. After the hunt they returned to the house they were living in. Edward and Bella were still gone. When they came back Edward looked a little off, like he was thinking really hard, something happened.
"Finally, you're back." Esme said.
"What kept you?" Carlisle asked.
"We came across other vampires." Edward told him.
"So did we. We met two while we were out too." Emmett said.
"We met the same two. He mentioned meeting you." Edward said.
"That's odd." Carlisle said.
"What were they doing when you saw them?" Emmett asked Edward.
"Eating." Edward answered.
"Again?" Emmet said surprised.
"Well, the woman's a newborn." Bella said.
"Yeah, but not the man. There were four bodies when we saw them. How would he need more?" Emmet said confused.
"Emmett's right, that's strange." Alice said.
"It's not our business." Carlisle said.
But that changed a couple nights later when Jasper came across Casey again, except this time with a full coven. Once they saw him they ran, they had been feeding. Jasper looked at the bodies, and three of them were vampires. Now, something was really strange. Vampires cant feed on other vampires, they have to have something that's alive to get the blood from, and vampires are dead. Jasper checked the three vampires and they were dead. He ran back home.
"Jasper what is it?" Alice asked.
"That vampire we met the other night." Edward said.
"He's killing other vampires."
"So? That happens." Emmett said.
"By drinking their blood." Jasper finished.
"What?" Alice said.
"Three of 'em, he sucked 'em dry." Jasper said.
"Should we tell Carlisle?" Alice asked.
"I think so." Jasper said.
They waited for the others to get back. Carlisle noticed the looks on their faces and knew something was up.
"What's wrong?" He asked them.
"It's about that vampire we ran into the other night." Emmett said.
"Alright."
"He's killing other vampires, not just a mass amount of humans." Emmett said.
"Jasper saw him." Alice said.
"But, the way he's killing them is what's strange. He's feeding on them."
"That's impossible, we cant drink dead blood." Carlisle said after a minute of pause.
"We know that." Emmett said.
"Are you sure they were vampires?"
"Of course I am. I know what one of us smells like, and their eyes were red."
"I just don't see how that's possible."
"Well neither do we." Emmett said.
"Well, maybe the Volturi will know."
"But, what could they do?" Bella asked.
"I'm not sure. But, killing that many humans night after night is risking exposure."
So they decided that he and Jasper, since Jasper is the one who saw it, would go see them. When they arrived at the Volturi they were greeted nicely by several different members of the Volturi. But, the one they needed to talk to was Aro, the leader.
"Carlisle Cullen, how good to see you again. What brings you to Italy?"
"Just on vacation."
"How nice. What brings you here?"
"As if you don't already know." Jasper said rather rudely and abruptly.
Aro gave him a fake grin for his being rude but Jasper was right, he did know.
"Yes I do know, a vampire feeding on other vampires. It's actually not as absurd as you think."
"What d'you mean?" Jasper asked.
"Just clear it from your mind, no need to worry about it. but, out of curiosity, who is this vampire?"
"His name is Casey, that's all we know." Jasper told him.
"You don't know his last name?"
"No."
"I see. Well, as I said, just put it out of your mind."
"But, not only that, he's killing mass numbers of humans, night after night. That's risking exposure." Carlisle said.
"Carlisle, there is nothing we can do about him."
"Why not?" Jasper asked rather rudely again.
"I cant say. You wouldn't understand anyway."
"So we're supposed to ignore it?" Jasper asked.
"Look, we don't like it anymore than you do that he is risking our exposure but, we cannot –" He flinched really quick cutting him off as he heard a woman's voice scream his name in anger inside of his mind.
"Aro, are you alright?" Carlisle asked.
"Excuse me." He walked away holding his temple like he had a headache and his eyes were closed as he stood facing away from them. After a couple minutes he came back over looking somewhat frightened.
"Aro, are you alright?" Carlisle asked again.
"You should leave. Forget Casey, and whatever you do, do not confront him. just forget about him." He walked away.