This wasn't right. This was miles from right. He himself didn't understand vampires well enough yet to understand exactly what was happening. He could guess, he had theories. Was it even possible to turn without dying first? Shouldn't Barry's healing factor be more powerful than the blood? Why? WHY?! He was an engineer. A programmer. He handled technology. Gadgets, machines, programs. This was biology and crypto-something or other. This was as far from his area of expertise as was possible to get.

This was Caitlin's area. But she wasn't here. Even if she were, time was slipping away. There wasn't enough time to even get her up to speed on everything, and that was even assuming she got over the "yes, vampires are real" thing quickly.

In a moment of panic, he pulled his hand free of Harry's grasp and slapped him across the cheek. It harder than he'd intended, but he knew the other could handle it. "ALLEN!" He barked, grabbing fistfuls of his shirt. "If you don't stop this, you're going to be like me. Neither of us wants that!"