A/N: Based around season eight.

I walked into the building wearing black heeled boots, blue jeans, creamy-white layered tank top and a black blazer. Pushing my dyed black hair off of my face as I walked into the lobby and then to the elevator that I rode up to the floor I needed.

The door's opened and I walked out and saw a few heads turn and stare at me, soon others do to and all eyes followed me as I walked up the stairs and knocked on the office door and it opens, "Good to see you again Lillian"

"Aaron, haven't I told you to call me Lilly? We're practically family" I mused as he stared at me, not blinking as he eyed my obvious differences since I saw him all those years ago, my hair had been red - but it was dyed black now, I was paler than before - practically related to Casper the Friendly Ghost and I wasn't wearing my glasses anymore, only my contacts.

"You've changed quite a lot since I last saw you-"

"And you haven't changed at all" we stared at each other before he cracked the tiniest smile and stepped aside for me to walking into his office and I shut the door behind me before he quickly pulls me into a hug.

"I"m sorry what happened to you-"

"It hardly matters now Aaron, I had finished all my PhD's and even started a few online courses so I can do a few more, the fact the people at my University thought I had helped a friend murder people by making them into a crispy human isn't your fault"

"Still, it is partly my teams fault-"

"The past is the past, and you can't change that Aaron, we both know that. We may hate it, but it's already written in stone. Don't worry Aaron, everything happens for a reason - even you going into hospital, by the way," I whacked him over the head and glared at him, "How come I found out four months after you went in?!"

"It didn't seem necessary" he rubbed his head while glaring at me.

"Nu-uh honey, you're like an older brother - one I never had and I have a right to know if you go under the knife"

He stares at me in silence for a moment before there is a knock on the door and it opens, revealing a blonde who stopped in shock at the sight of me, "We - err, have a case-"

"We'll be there in a minute JJ" she nods after a second before hurrying away.

"Well, guess I get a case the first ten minutes I arrive, this will be fun" I mused before I continued to walk after JJ and Aaron runs after me and as we walked through the door before he grabs my elbow and makes me stop.

"I'll be watching you closely" he warns me.

"When aren't you?" I gave him a cheeky smirk before I pulled out of his hold and sat down on the chair between Derek Morgan and JJ.

"Who are you?" Derek asks me in confusion.

"Ask Spencer, he should know" everyone to turned to Spencer, including myself and I stared at him as he stared at me in confusion, "Aw, you don't remember me Suspendor's? What a shame" 

"I-ba-but-as...." Spencer blubbers and his face heats up as everyone started at him stutter and fumble for his words.

"Alright Lilly, enough. We need to Brief"

"Of course Aaron-"

"It's Hotch when we're on the job"

"Of course sir" I smiled at the table as I pulled a folder over to me and opened it up before staring at the victims mutilated bodies.

"Oh - hello" 

"Hello Garcia" I say absent mindedly as I flicked through the pages.

"Err-"

"Sadist, though he does have a type, he's bi-sexual by the looks of the rapes. He prefers blonde's with blue eyes, oh - and dog owners" I stared at the pictures of three victims with dogs, "No - pets in general. He's holding them in a private location before he dumps the bodies"

"Sorry, who are you?" Penelope Garcia asks me in confusion.

"Lillian Florence, call me Lilly - how do you do?" I stuck my hand out towards Garcia and she took it before she breaks out in a grin.

"BlueEyes333?"

"One and only, QueenPenlope44" I grinned.

"Oh my gosh! I love you and your works-"

"Garica"

"Sorry Hotch" Garcia looks at Hotch guiltily before I turn back to the folder.

"I suggest JJ stays with another member of the team since she is in the Un-subs liking"

"I agree, JJ you'll be staying with either myself, Morgan or Florence"

"Sir - should we really let JJ go with Fl-" 

"I may not look like it Derek Morgan, but I have a lot of experience with protecting people when I need to"

"Oh?"

"Of course - I was one of the Witness Protection officers for six years" I fingered the corner of the folder as I scanned the page before I turned it over again, knowing that everyone was stare at me in either shock, confusion or maybe even awe to think of it.

"Wheel's up in thirty" I got up and walked out of the room with the folder tucked under my arm before I walked to the elevator and got in, I stared at my new team as they stared at me in shock as the elevator doors closed before I leaned on the wall of the elevator, resorting to old habits.

Chewing my lip all the way home I grabbed my red duffle bag that was just inside of the door before I closed the door and locked it before I headed towards the jet by the bus... one of my less desirable way to travel - well I'm stuck with it until I can get the money to buy a car, and pay rent on my new apartment.

Pulled a strip of gum out of my pocket I pushed it into my mouth before I put the wrapper into my back pocket before I walked up the stairs into the jet and went and sat in the furthest seat.

Then I sat and waited, Aaron came on second - followed by Spencer Reid and the rest, all staring at me curiously and some even looked threatened by me - odd, normally people cower or glare at me because i'm 'Pyro'.

I reached into my bag and I slipped the lighter into my inner blazer pocket and then grabbed my MP3 player and pushed my headphones into my ears and I pressed play.

Chewing the mint gum I continued to go over the case file as I evaluated how the victims were killed.

The lighter in my pocket pressed against my breast and I swallowed as I fought the compulsion to get it out and flick it on and off again, once more, a habit I had until I finished Uni - mostly because I wanted to scare people away from me, so I flicked a lighter on and off to scare them away so they couldn't beat me up anymore.

Ignoring the coldness that went through my blazer pocket and tank as I listened to Pierce The Veil from my ear phones, I then noticed that we were actually flying - ha, I really need to stop tuning out to things.

 Someone sits in front of me and I see that it was Spencer, curiously I pulled my head phones out of my ear's and looked at him, "So how do I know you?"

"You did speak to me in a small group, you were quite nervous back then... I guess this job has toughed you up a bit with confrontation"

"Can I ask when we met?"

"No" I stared at him in amusement.

"Want to play chess?"

"Sure... I haven't played chess since Jason dragged me bird watching and taught me how to play"

"Jason - as in Jason Gideon?"

"Yep" I helped him set up, "Want to be white?"

"Sure - when was the last time you talked to Gideon?" he asked me as he moved his first piece.

"Last night"

"And...?"

"Check mate" I then leaned back in my seat and watched as Spencer stared at the chess board in shock.

"How...?"

"I learned from Jason Gideon, I was bound to win at least one game in my life time" I shrugged before I looked over to see Derek Morgan on my left.

"Look's like Pretty Boy's got competition"

"Hardly" I leaned into my chair and pulled my phone out and saw that I had a text from Gideon.

: Jason G : How's your first day going? :

: Lilly : Alright, just beat Suspendor's in chess - though I do wonder how I can beat him and not you :

: Jason G : Oh the mysteries of the world that you'll never find out :

I rolled my eyes and shoved my mobile into my pocket before I looked back over to Spencer who frowning at the chess board - trying to figure out how I beat him in six moves I guess.

"Please put your seat belt on, we're going to land" the captain said and I buckled my seat belt back up before we landed and then went to the police station.

Walking into the place we're met by the man in charge look us all over, before he stops at me and stares me up and down, "Hello, I'm Chief Darwin-"

"Lillian Florence, how do you do?" I stuck my hand out and we shook, him not letting my hand go after a few seconds, causing me to pull my hand away, "Hotch, what would you like for us to do?"

"I think you should stay with JJ for a while so Morgan, Rossi and Reid can look at the crime scene-"

"This way to where you'll be working Miss Florence" Darwin grabs my arm and starts dragging me off somewhere and I looked over my shoulder in confusion to Aaron who was giving me an amused look.

"Here we are - would you like a coffee? Tea? Hot chocolate?"

"Tea would be lovely-"

"Sugars?"

"One or two, I don't mind" he nods and hurries away and JJ comes and stands by my side.

"Looks like someone has taken a  fancy to you"

I made a face and she burst out laughing before I went and sat on a chair, opening the folder I stared at the papers in them before someone comes and sets a tea down in front of me, "Thank you Chief Darwin"

"Anything for a pretty lady" he gives me a smile before Aaron pushes out of the room and I then started to work with JJ, Black and Hotch as I started to wonder why the hell the chief acted like that.