A/N: This takes place post-Legend 1&2 but pre-Semper Fidelis, in Season 6.

I don't want to give anything away before you read the first chapter, so please read the Author's Note afterward.

Disclaimer: I do not own NCIS.

1

"Tony, stop snooping around Ziva's stuff," McGee sighed, sliding his gaze across the bull-pen to his partner, who was, in fact, doing just that.

DiNozzo snorted, rifling through the papers on the Mossad agent's desk. "Relax, Probie. Keep an eye out for me, will ya?"

"No, I will not. If you want to get impaled by a paperclip, be my guest. But leave me out of it."

Tony rolled his eyes and shook Ziva's mouse. "Oh-ho! She just sent an e-mail. To a Mr.…uh, can't pronounce the name." He clicked and frowned. "It's in Hebrew. Figures."

McGee shook his head. "Good. Now will you please get over here? Gibbs is coming back any minute, and this paperwork needs to be done."

There was no reply for a short moment as Tony continued to peruse the monitor. Then he cleared his throat.

"Uh, McGee—where exactly is Ziva?"

"Dentist's," Tim answered promptly, his eyes back on his work.

"You sure?"

Despite himself, the younger man looked up.

"Yeah…why?"

Tony scratched his head. "Because my Hebrew is extremely bad, but this is definitely a time and date, and that's today, right now, and this word means 'gun,' and I don't think dentists usually have anything to do with firearms."

McGee stood and crept to Tony's side, squinting at the lit screen.

"Could be 'gums,'" he said finally, slowly.

"But it isn't," Tony said with certainty.

Tim backed away. "Look, it's none of our business, anyway. This is Ziva's computer, these are her private e-mails. Let's get back to work."

"I think we have the right to know if our partner is hiding something from us," Tony insisted, and he sat down in Ziva's chair.

"Tony…" McGee glanced around before kneeling. "This is ridiculous!"

Tony fixed him with a stony look. "Look, you can't deny that Ziva's been acting weird lately. All that stuff with Rivkin—I know she's not telling us everything. I want to trust her, but something's up. And I'm going to find out what it is."

His partner let out an annoyed breath, but it was clear he'd acquiesced.

"What's your plan?"

"I'm gonna translate this."

"You'll take too long-"

"Then you do it!"

After a brief staring contest, McGee pushed his superior out of the way and set to work.

"I'm only doing this so you'll calm down. Then you'll see I was…"

His voice trailed off as the message rewrote itself in English, and the two started reading. Slowly, Tony sat back in his seat, taking a shaky breath.

"Wrong. You were wrong."

McGee gaped soundlessly, his eyes refusing to believe what was in front of them.

"This must be a mistake. Maybe the translation didn't come out right?" He reached for the keyboard, but Tony pulled it away and leaned forward.

"Tim. You didn't make a mistake."

"But-"

"This explains everything, doesn't it? According to this e-mail, Ziva's meeting with an arms dealer today. Right now. She mentions her 'partner,' and I know she and Rivkin are working together. They're operating right under our noses. She wrote it herself—'NCIS suspects nothing.' Why else would this be on her computer?"

McGee shook his head. "I don't know, but I think we should ask Abby for help, make sure no one is sending phantom e-mails to frame Ziva."

Tony nodded slowly. "And…tell Gibbs."

"Tell me what?"

Both agents turned in surprise to see their boss standing before them, coffee in hand and a stern expression on his face.

"We found something, boss," Tony said promptly.

"On Ziva's computer?" the man questioned. "Where you don't belong?"

"You might be glad we found this," McGee said quietly, moving aside. "Just read it."

Gibbs sat and read the e-mail. His expression didn't change throughout. He stood calmly.

"Have Abby run a-"

"Planning on it," Tim cut across him.

"Go do that now. And get a location on Ziva's cell. DiNozzo and I will meet you at the car." As McGee hurried off, Gibbs slapped his senior field agent on the back of the head.

"Ow! What was that for?" Tony rubbed his head sourly.

"For snooping."

"But boss, this—and Rivkin—and Ziva…"

"I know," Gibbs said shortly, gathering his gear.

"It makes sense."

"I know, DiNozzo! Why else d'ya think we're taking the damn car to find her?" His tone was harsh as he stalked to the elevator, Tony following along behind him and quickly rearranging his face to hide the hurt.

It doesn't matter, he said to himself. I just hope we're wrong.

--

"This the place?" Gibbs asked, looking around the desolate warehouse compound.

McGee nodded, glancing sideways at Tony. "Yeah. She's here, somewhere. Or at least, her phone is."

"All right. We're one short, so I'll take buildings one through six and you two take the rest—and watch each other's six!"

"Got it, boss," they said in unison, moving away with guns drawn.

"We might be wrong about the whole thing," Tony said quietly as they approached the first structure. He was aware he sounded as though he was grasping for straws, but anything was better than believing Ziva was a traitor.

"Yeah," McGee agreed tonelessly, taking a breath as they got into position. He nodded at his partner, who peered through the window.

"Don't see anything inside…nope. Nothing."

--

Three buildings later, the two were beginning to believe they had, in fact, made some mistake. So far, nothing had been seen or seemed out of the ordinary.

Tony looked through the small window in the door to Warehouse 11 and suddenly ducked down, his face pale.

"In there," he whispered. "I saw her. There are a ton of boxes, and she was looking into one of them."

"I'll call Gibbs," McGee said, pulling out his phone and frowning down at it. "No service."

"Go get him," Tony instructed. "I'll stay here."

"Tony-"

"Go! I have to make sure she doesn't leave."

Tim reluctantly started back to find Gibbs. Tony was just turning back to the door when it suddenly opened, and Ziva looked out at him. She smiled.

"Why, Tony. What are you doing here?"

Tony rose to his feet. "Ziva, I…"

"Come in." And she reached out and yanked him inside. He managed to hold onto the gun as he stumbled and almost fell on the hard concrete floor. As she shut the door, he regained his footing and turned, SIG half-raised.

"Is it true, Ziva?" he asked.

She looked back at him innocently. "Is what true?"

"Are you…are you and Rivkin…?"

"Sleeping together? Yes, but that is none of your business," she teased.

His hands shook. "You know that isn't what I meant. You're supposed to be at an appointment..." He chanced a glance at the boxes. "What are in those? I'm guessing weapons of some kind."

And suddenly Ziva's friendly mask slipped and her face hardened. Her eyes glittered coldly.

"How did you find out?"

"E-mail," he said simply, suddenly remembering the man Ziva was supposed to be meeting. He wondered if there were other people here—if there were, in fact, guns trained on him at that very moment.

"Ah. You were being a—what is it?—a 'peeping Tom?' Yes? Well, no matter. You would have found out soon enough. The plans I have been working on for years are finally coming to pass. I no longer need NCIS as my cover."

Tony lifted his gun. "Oh, my God…"

A/N: The first thing you need to know--and should already know if you've read anything else by me--is that I am not a Ziva-hater. In fact, I'm a moderate Tiva-fan. I just wanted to make that clear in case the possibility crossed anyone's mind. This fic actually came to me sometime after "Reunion," because (I'll admit it) I was less-than happy with Ziva in the season so far. I was angry (like Gibbs) when I found out she killed Ari on her father's orders. So I felt temporarily anti-Ziva, and started this.

Now things have turned around, and I like Ziva again. But I thought this was still a good idea, so I continued with it. :) Should only be about three chapters--I already have the second written and know what I'm doing for the third.

Review?