Huh...the "NCIS" bug must've bit me or something, 'cause I've decided to finish this one along with "Biological Weapon 2". Anyways, enjoy after a much anticipated and insanely long wait. :)

It followed him on quiet paws, not making as much as a sound. The cat could not have been there for all Tim could tell. The entire ride down to the lab, it just sat there with its tail curled neatly around its paws and its glittering eyes trained on where the doors would part once stopped. One ear was kept turned toward him, while the rest of its senses seemed to be kept upon the only exit. Upon arrival, he let out a breath he hadn't realized that he had been holding.

"Abby's just going to love you," Tim murmured as he stepped out quickly.

With a quick and light bound, the creature was at his side again. It was no more than a shadow that kept his pace, never missing a beat. Why, he wondered, did this creature choose to follow him around? Of all people, why him? He wasn't even a cat person; they made his allergies flare. There was still a question that lingered at the back of his mind, however. How had the feline made its way into his apartment?

"I don't have anything yet, Gibbs!" the Goth said from where she stood. Her black hair was pulled into pigtails, which shined in the lightning outside as it struck.

"It's just me, Abby," Tim said as he joined her at the computers and keyboards. "Gibbs sent me down here to help."

"He thinks that I need help?" Abby Scuito spun around to face him. Her eyes were heavy and tired, her dark makeup nearly worn off. "Okay, fine. This guy was totally way too avid with taking pictures of everything! It'll take me ages to get through this by myself."

"He must've been taking pictures of the areas where he took the victims before he killed them," Tim turned to one of the computer screens, letting his fingers rest across the keys.

"Are you deducting?" Abby asked, one brow raised.

As Tim opened his mouth to speak, a flash of inky fur passed between the two as the cat leapt on top of the desk. It sat neatly, the unnatural light of the computer screens reflecting oddly off of its silky pelt. The golden yellow eyes looked up at Tim, and then to Abby.

"Is this yours?" Abby looked from the feline to Tim.

"No…yes…not really. I don't know," Tim stuttered with an answer. "It just started following me around this morning."

"And you let it come to work with you?" Abby reached out her hand to the cat, which narrowed its eyes.

"Abby, careful," Tim warned. "This cat doesn't like other people."

The cat pulled its lips back, stretching out its neck to meet Abby's hand. Its fangs flashed white in its pink gums as it opened its maw. Tim moved to grab the cat by the scruff, but paused. The cat butted its nose against the Goth's hand and rubbed its face across her palm.

"Sure, Timmy, this cat is real rabid," Abby chortled as a deep purr resounded in the feline's breast and throat. Its silver whiskers bounced and shimmered in the light as she scratched its head and long ears. "I just can't believe Gibbs let you keep it."

"He hissed at Gibbs, Tony, and Ziva," Tim said. He kept his hands to himself, still too timid to pet the beast that had scared him last night. "You're the only one that he's let pet him."

"I thought you were allergic to cats?" Abby looked at him questioningly as she hefted the cat up and set it on the floor.

"Not this one, apparently," he whispered more to himself than Abby.

"Strange," she wiggled her brows. With a sudden movement, she snapped back around to the computer screens. "But first, we must solve the mystery of the many, many pictures before we move onto the mystery of the cat that Timothy McGee is not allergic to."

The wind howled as the rain started to come down in stinging droplets. The lack of life around him was a welcome feeling for once. Neither human nor beast could interrupt his peaceful repose here in the safety of his own home, of his own labyrinth of crates and pillars.

But there was no rest for the wicked.

"No, please, I beg of you to leave me be!" he howled at the many pictures scattered across the floor and desk. "I can't take you always being everywhere!"

The tortured being tore his eyes from the ceiling back towards the most recent pictures. There, in the background of all of them, there it was. It stared out at him with cold eyes, with absolute malice. And in every single photo he had ever taken, never once was it looking in any other direction. In every shot, its soul slicing eyes were directed directly at him.

Perhaps no one else could have heard it, but he did. Mixed in with the thunder was a rumbling hiss. His neck stiffened, his hairs raised up, sweat trickled down the side of his unshaven face. Experience told him what was there, but he had always turned to look. Why did he always turn to look?

"Leave me alone!" he whispered through a sob. "Please, you're driving me insane!"

The black cat merely looked at him with contempt in its golden eyes.

Tim sat back in his chair. What was tickling the back of his brain? The pictures were bizarre in that they showed no pattern. They were of trees, of busy streets, of small cafes. Not one showed the same person twice. And the majority of them were of populated areas where a murder or a body would have been most definitely noticed.

But something was wrong.

"Abby, do these look strange to you?" Tim asked.

"Not really," Abby paused in her browsing of the file she was currently in. "They're nothing like each other, but he's grouped a huge amount of them into a file labeled 'It'."

"Why's it labeled that?" the young agent leaned over the Goth's shoulder to get a glance of the collage of photos piled up on the screen.

"There must be something in the pictures that deserved that name," Abby answered with a shrug. "But I have to tell you, McGee, something had this guy completely scared. And I don't mean like the kind of scared where you think there might be someone outside your window at night, but the kind of scared where you know that there's nowhere to hide and that if it catches you it will kill you."

"What could have a violent killer so scared out of his mind?" Tim shook his head, running his fingers through his hair. "Can you enlarge a few of the pictures on the big screen?"

"Way ahead of you," Abby pushed off of her chair, standing in front of the large monitor on her wall.

She had enlarged four of the pictures, each one of a different place from the others. Tim came to stand by her. Both of them tried to find at least one minute connection between the four. It didn't have to be large or obvious, but even something of infinitesimal size would be a help.

"There!" Tim shot a finger out at a point on one of the pictures. "Right there, that black spot in the background. All the pictures have that spot in them."

"I'll see if I can magnify and clean up the image," Abby sat back at her computer and a few keystrokes later the black spot on all the pictures was clear.

"That looks like…." Tim turned, and Abby followed his line of sight.

A deep purr came from the feline's throat as both of the techies looked at it. Its golden eyes glittered in the flash of lightning and its skeleton lit up, its fangs glistened brightly as it pulled its face into a horrid smirk.

So, what did you guys think? Still worth following? Remember to tell me in a review, or it may be another nine months before an update on this one. Thanks for reading! :)