"When I said Chips, I meant what you would call French fries, not potato chips." Caleb complained.

"Oh sorry." Barry said.

"Doesn't matter." Caleb said. He was sitting up in the bed, gorging himself on the food Barry had brought him.

"So you're a metahuman?" Caitlin asked.

"A what?" Caleb replied through a mouthful of burger.

"Someone with superpowers." Cisco translated.

"Looks like it." Caleb said. He threw a fistful of chips into his mouth.

"But you're British." Barry puzzled.

"So?"

"The Particle accelerator explosion was in America." Barry said. "So how did you get powers?"

Caleb shrugged and went back to pigging out. Crumbs sprayed everywhere.

"And I thought you ate loads." Cisco said frowning at Barry, flicking a sliver of bread off his face.

"Maybe you got you're powers from remnants of the particle accelerator energies that were released into the atmosphere." Caitlin submitted.

"I don't know, it seems a pretty big coincidence that another speedster is created almost a year after the Flash was, under very similar circumstances." Cisco said.

"So you're saying it wasn't an accident that Caleb got his powers?" Caitlin countered.

"You don't think Wells had something to do with this?" Barry asked his expression serious.

"I highly doubt even the Man in Yellow had the capability to make a lightning storm appear."

Suddenly, there was a crash. Caleb had knocked over the bedside table onto the floor. His expression had turned to one of terror.

"Caleb what's wrong?" Barry asked.

"Did you say the Man in yellow?" Caleb breathed.

"Yeah, why?"

Caleb shook his head. He'd been having flashes of visions of David getting his chest sliced open.

"Wait have you met the Man in Yellow?" Barry questioned, incredulous.

"He's the man who nearly killed my local bully." Caleb whispered.

"Wait, that story on the news about that kid who had his chest sliced open by an invisible assailant was referring to the Reverse Flash?" Caitlin said.

"Reverse Flash?" Caleb asked, nonplussed.

"It's what we call the man in yellow since he has the same powers as the Flash but has the exact opposite coloured costume." Cisco explained, fiddling with the PDA in his hand. He turned the screen around to reveal a forty something looking man with black scruffy hair and pair of glasses. His face didn't look like that of a killer.

"But what does he want with me?" Caleb asked.

"Maybe he needs more speed." Barry said.

"What?"

Barry sighed and started to explain.

"Wells has said before that he needed more speed from me, well what if he decided that I wasn't enough, what if he decided to create another speedster to generate more speed energy."

"But why go to the trouble of going all the way to England just to create a speedster?" Caitlin asked.

Caleb piped up.

"The man in yellow said that I wasn't meant to get this power, he said I got in the way of the lightning, he said Lindsey was supposed to get this power." Caleb admitted.

"But why would he need a teenage girl, why not a regular woman or even a man?"

"Polar opposites, Dr Snow." Came an older sounding voice behind them.

The group turned around to see a middle aged man with white hair and wearing thick rimmed glasses walk in followed by a younger well-built man with black hair.

"Professor Stein, Ronnie, what are you doing here?" Barry asked.

"We heard about your little fleet footed delinquent." Professor Stein said.

"Delinquent?!" Caleb protested.

"Pardon me." Professor Stein replied.

"Listen mate, call me a delinquent again and I'll will run you to Mt Rushmore and drop off the top." Caleb threatened.

Ronnie laughed.

"I apologise my boy." Professor Stein apologised.

"Professor Stein, what was that you said about 'Polar opposites'?"

"Barry is a grown up male speedster but Lindsey would have been a teenage female speedster."

The group just looked at him with not even the slightest look of comprehension.

"Wells is planning to get back to his own time but his own speed is not enough to smash through the space time barrier, yes?"

The group all nodded except Caleb who shook his head.

"So he requires the Flash's speed to do it for him, but what if he has decided that Barry is not enough, what if he decided to create another speedster who would generate even more speed energy."

"But why would a teenage girl work best?" Cisco asked.

"Lindsey is the exact opposite of Barry, a teenage girl, think of it as a the two poles of a magnet attracting, but Caleb here got in the way so now the compatibility is decreased but it is still viable."

"But how do you think Well's is planning to use us to get back to his own time?" Barry asked.

"I don't know but after we fought him with Mr Queen the other night, he said something about needing to make sure the particle accelerator was fully powered up."

"Yeah right before he escaped." Barry said bitterly.

"Don't worry Barry we'll catch him." Caitlin said.

"Well, I don't know about you lot, but I'm going for a run around the city, to the see the sights or whatever." Caleb said.

Before the others could stop him, he'd got out of the bed, changed into his normal clothes and raced out of the room in a crackle of amber lightning. He left the S.T.A.R labs building and was soon running along the streets of Central City. He zipped past the police stations and nearly every bar and coffee shop until he finally stopped on a bridge by the football stadium, overlooking the bay. It was a cloudy and overcast day with a little fog around.

"Well, not much different than the weather back home is it?" Caleb said to himself.

As soon as he said it, he started thinking about home. His mother and sister and how worried they'd be. His school and his limited number of friends. And finally Lindsey. Was she missing him? Would he ever see her again?

He sighed and turned to leave but immediately found himself staring into the face of the Reverse Flash! Caleb cried out and back up against the railing.

"Jesus, someone should put a bell on you!" Caleb shouted.

"Well done, you did as I said, now you will run again, faster than before, all the way around the world!" The Reverse Flash rasped.

"WELLS!" someone shouted.

To the right of them at the end of the bridge stood Barry in his uniform, his cowl pulled over.

"Leave him alone."

"You will run as well, Barry or I'll pay a visit to Iris."

"Touch her and I will kill you." Barry said, in his most threatening voice. He was in a battle stance.

"Do you not learn anything Barry?" The Reverse Flash asked, rhetorically. "You cannot beat me!"

Suddenly all Hell broke loose. Barry rushed at the Man in Yellow and they both flew backward and started brawling. Even with his enhanced senses, Caleb was having trouble keeping up with their movements but he could tell the Man in Yellow had the upper hand. They both zipped around up the length of the bridge until finally they stopped. The Reverse Flash had Barry pinned against the railing by his throat.

"Caleb, run!" Barry managed to croak.

Caleb completely ignored him.

"Leave him alone!" He shouted defiantly.

The Reverse Flash turned to him.

"Are you going to fight me?" he growled.

"Yes."

The Reverse Flash laughed again and the sound chilled Caleb to the bone.

"You're just a boy, I'm the fastest man alive and you are…"

Caleb cut him off by speeding at him and kicking him where in the falsetto zone. The Reverse Flash keeled over, cradling his nether regions. Caleb hoisted Barry over his shoulders and zoomed off. Barry was heavy so Caleb could only carry him so far. He stopped at an old warehouse a few miles away.

"Thanks." Barry croaked.

"Don't mention." Caleb said, breathing hard. His heart was going like a drum.

"Let's get back to S.T.A.R labs." Barry said, getting up.

Caleb nodded and they both speed away.