(Ed. Note: technically this Duet is outside canon, but Backfire seemed the most logical place to put it chronologically. Enjoy)

"What the hell are you doing down here?" Provenza's voice could be heard ringing through the stacks of the LAPD library.

"Shh.. it's a library," Flynn responded.

"Yeah, so why are you here?" Provenza hissed in reply.

"How'd you know I was down here, anyway?"

"Sykes said something about it. She said she overheard you commenting that you'd be down here if anyone needed you."

"And she was right, so what do you need?"

"Me? Oh, nothing."

"Then why?"

"Well Flynn," Provenza started to chuckle, "you aren't exactly the library type. I figured you were up to something. Any new librarians I should meet?"

"You never change."

"And why should I?"

"You do realize you're more Letch than Casanova, don't you?"

"It's all in the eyes of the beholder, my friend."

"Beholder, my ass. When you're ogling someone young enough to be your granddaughter, you've crossed the line."

"Hey, now... that was only once, and she looked much older than her age."

"Right..."

"It's not my fault young women aren't looking that young anymore. Besides, it's not that easy to find people worthy of my efforts these days."

"I still say go back to Liz. Make your kids happy and act your age for a change."

"Liz? Are you kidding? She's the one I have to work until I die or give over my hard-earned retirement."

"There, problem solved. Marry her again, and you won't have to give her anything."

"Yeah... except my blood, sweat and tears."

Andy smirked, "Nah... she knows you better than anyone. Besides, she just retired. Maybe you can get some of her pension in exchange."

"Says the man who just got robbed for his daughter's wedding. And anyway, how did this conversation turn to me. We were talking about you. So who's the skirt?"

"Who?"

"The skirt? The attraction? Who are you down here to make?"

"Gee... and they thought Sensitivity Training with you would take."

"Three times, and I'm still myself. They stopped bothering."

"Yeah... anyone can see you're a lost cause."

"Hey, hey, hey now... you're every bit as much the cad that I am."

"Huh, not likely.

"You're doing that again."

Andy looked confused, "Doing what again?"

"Changing the subject."

"I haven't changed the subject. It's the same subject it was when you came in here and interfered with what I was doing."

"And I keep asking you, WHO are you trying to do?"

"Not who, you old fart, what. I'm reading."

"Reading?"

"Yeah, reading. I do know how to read something other than police reports, you know."

"Well yeah, I know that. But you read stuff worth your time, like sports pages and repair manuals. There's nothing down here but boring legal documents. You're liable to die of dust allergies down here."

"You don't die from dust, Provenza."

"Well, there's always a first time. Whatever has you down here must be pretty important."

"Maybe."

"Maybe? That's all you're going to give me?"

"Look, old man, I don't want to give you anything. Last time I told you something personal, you blabbed it to the whole squad. This time I'm not telling you nothing."

"You can't hold that one against me. It was obvious to everyone that something was bothering you. The others had pretty well figured it out anyway."

"Figured it out maybe, but I specifically asked you not to tell anyone about my high blood pressure and before the day was out, everyone knew. I'd kept that secret for months. You find out and within hours my business was other people's gossip."

"It wasn't that bad."

"Wanna bet? If the Captain hadn't done her thing with HR, I'd be on permanent desk duty."

"Well she did, and you're not, so why are you whining about it?"

"I'm not whining, I'm just telling you that's why this time my business is my business. I'm not telling you nothing."

"Well it can't be that interesting anyway, if you're in a library trying to get it done."

"Good, you go with that," Andy turned back to his book, trying to dismiss Provenza.

"And another thing... how come Sykes knew where you were and I didn't."

Andy sighed, "What are you, my mother?"

"No, I'm your partner. What if something came up and you were needed?"

"I've got my phone."

"Yeah... well what if we couldn't get to a phone?"

"Are you serious? Every time I turn around there are more people in the squad room, standing around, trying to figure out what's what. Someone would have had a phone."

"Maybe... but if we had to roll, we'd need to know where you were. We'd need to... I don't know... time it so we didn't leave the building without you. If we don't know where you are, then it's hard to include you in these things."

"You're making this stuff up as you go along, you know that?"

"It could happen..."

"Right..."

"Listen, Flynn, I'm your best pal. I always have your best interests at heart."

"You're a nosy son-of-a-bitch and won't leave me alone 'til you think you have it figured out."

"Now, that's harsh. I have feelings, you know."

Andy couldn't help laughing, "Yeah... I'll be sure to make a mental note of that one. You're out of luck, old man. This one I'm keeping close to my vest."

With that, Andy smirked at Provenza, then got up and walked out of the library. Provenza watched him go and then turned back to the volume Andy had been reading. "LAPD Fraternizing Policy? Why does he want to know that?"