Jack stood in his office, looking down at Rina as she chatted to Tosh. The two looked deep in conversation about some computer program or other, and weren't likely to notice his scrutiny of Rina any time soon. Owen had wandered back to the morgue, still apparently pining for Diane, and Ianto had left to oversee the shop, just in case. Jack was worried about him. He spent more time up there than he did in the Hub, it seemed, most likely because it reminded him of Lisa. Jack turned as Gwen came in, and then turned back to the view.

"Jack?" Gwen was concerned. Rina had calmly waited for Jack to put the gun away, and then introduced herself to the team as he'd disappeared into his office.

"Did you ever do Shakespeare at school Gwen? Specifically Macbeth?"

"Yes, in my GCSE year. Why?"

"Marina is the reason Shakespeare wrote the line: "By the pricking of my thumbs/Something wicked this way comes." She fits that like a glove."

Gwen was surprised by the emotion in his voice. From what she'd seen of Rina she was anything but wicked. Funny, sharp and definitely intelligent. Well, she understood what Tosh was talking to her about.

"Jack, what's so wrong with her? She seems nice, not 'wicked' besides, she can't be. She only looks our…my age."

"If Marina's here, it means there's either trouble or there's going to be trouble."

Gwen sighed, knowing from experience that once Jack had his mind made up about something then it would take more than her to persuade him to think otherwise. And she noticed he'd avoided the subject of Marina's age. She turned to leave, but then had a thought.

"Jack?"

"Mmmm." He turned his head towards hers lightly.

"Next time someone like Marina walks in, try to remember to breath .You kinda freaked Tosh out with the whole 'not breathing but still alive' thing back there."

"Not a problem." Gwen smiled, and walked out. As she did so, she caught a last comment from her boss.

"There isn't anyone else like Marina."

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Down in the main part of the Hub Tosh was still deep in conversation with Rina when one of the programs she was running set off an alarm. Tosh broke off her explanation and began to type furiously, checking and double checking the readouts from several monitors in her workstation. She frowned, then smiled as something beeped and the alarm stopped. Sighing, she turned to shout up to Jack, but he was already running down the stairs.

"Another one?" He leant over her shoulder, looking intently at the screen. There was a map of Cardiff displayed on it, with certain locations marked out with a red dot. One of the dots was flashing a bright electric blue however, signifying a new addition to the overall plan. Rina joined Jack, leaning over Tosh's other shoulder from where she was sitting. Owen appeared from the morgue, hurrying over to look at the screen as well. Gwen hung back, not wanting to see all the dots again. Far too many for her liking.

Tosh nodded. "That's the fifth one in two weeks. We need to stop this, Jack. Five killings in two weeks is too much, even the way things are now."

"I know Tosh, but we can't do anything unless we have a body, and…"

"No body?" Rina looked sharply at Jack over Tosh's head. He flicked a look at her, clearly saying keep out, this is our business. Rina ignored it, as she had done many times in the past.

"And I'm guessing that alarm went off because of an energy surge."

Their silence was enough.

"Those energy surges are actually what I'm here about." She took a deep breath. "I know what they are. And I'll tell you, without wanting anything in return." This last comment was made directly to Jack, who'd raised an eyebrow and opened his mouth to speak.

"Ok. Tell on." This was, surprisingly, from Tosh. All eyes turned to her, and se raised her chin in defiance. "I'm tired of seeing those dots on my screen. I want to know whats going on.2 Jack shrugged, and finally spoke to Rina.

"Go on then. Tell all."