Hey folks! This is my first ever post and my first ever fanfiction! So hi everybody. Long time lurker new time member ^^ This is the results of team effort with my dear Ronny Rper (Baccano!) I will be writing focusing on Izaya and she will be writing from Ronny. The first part is from yours truly second from ladychou. I love the world of Ryohgo Narita (creator of Baccano! And Durarara! ) so expect a few crossovers. Well it is in the same universe after all. :) I would love some helpful reviews since it is my first work =D!

Characters belong to Ryohgo Narita

No pairings, no warnings.

Story belongs to me and ladychou; .net/~ladychou

(part 1 by me)

Chapter 1

It was late on a Monday night, not the most interesting day in Ikebukuro. Izaya was sitting at his desk, the dollars chat room open as he kept an eye on it as he decided to sort through a shipment he had gotten from America. A few sore business men in Japan had become very interested in a certain American company called Nebula Pharmaceutical* ever since they had started to try buying up Japanese companies. He had heard about them before and was quite aware that they were not what they seemed. He was fully aware of the entire business of the Nebula corp. trying to buy Yagiri Pharmaceuticals with the main purpose being to obtain Celty's head. Since a client that was living in Japan had asked him if he could pull anything, Izaya had someone smuggle a briefcase of original documents. He had been watching the foreign web a lot closer lately, not to over look an outsider again. He smelled something was up a mile away he was sure that it hadn't been the documents the client was only after.

Izaya was not a courier, he was an informant. He would never hand over anything without knowing what it was, his career depended on knowing after all. And he had gotten a little more careful lately. He placed the briefcase on his desk and opened it with a small click.

It all seemed pretty mundane and normal. Finance reports, sale numbers, some birth certificates, things like that. He rest his chin on his hand as he read through the more informative information. "Ah.. Such a long slow night… no one is even online to distract me"

He went through each document before he reached the bottom of the briefcase. He rolled his eyes. "Heh.. Its like they don't think it's obvious there is a fake bottom on this" He shakes his head and sighs. The briefcase is obviously way too heavy and shallow to only contain paper.

He fidgeted around with the case until , low and behold he found the secret compartment. "Hmm~ so lets see what you really wanted from America~" He smiled at the slight break in the monotony, eyes slightly curious to see what it was.

"Eh?" He blinks at what is revealed. "A book?" he grinned softly. The book seemed very old. It was carefully placed in plastic and sitting comfortably in the padded lining of the suitcase. It was obviously of importance which made Izaya's grin grow a little wider. "Let me see here~" He stands up and fetches himself a pair of white cotton gloves before he handles the book, he didn't want to damage it.

Different ideas for what the book contained started running through his head and what could it have to do with a Pharmaceutical company? He pondered as he looked at the text. He was not expecting Japanese.. But it wasn't old English either., not exactly. It seemed like a mix of lot of old languages. He concentrated, using his language skills he has learnt through his informant work. It was a little fill in the blanks but one word stood out.

Alchemy.

"Alchemy…" he said the word again in his head. He started to laugh "ALCHEMY~! How absolutely, wonderfully absurd~! Ahahaha~!" He rocked his chair slightly as he laughed. "Don't tell me those scientists are getting that desperate~! Really?" Being the type of person to speak aloud to himself, he read out loud as he tried to make sense of the dead language

His laughter stopped as abruptly as it started. "This is from the same company that wanted Celty's head.. They seem to have even more deep dark secrets then I first gave them credit for~" He smiled to himself as his choice to start expanding his over view was starting to pay off so soon.

His eyes went back to the book. He read the book as best he could, his Latin was a little rusty. It was soon clear what this books main subject was. The elixir of life. "Well~ Celty is proof that it is possible to live beyond the natural order of things~ to think humans may be possible to recreate this.. Ah~ well scientists are just modern day alchemists aren't they?" He continued to think about this, his brain trying to sort everything, go through any detail it might already know. He had heard rumours of immortals.. Stories really.. Of people that seemed to re-appear many years later and still looking no older. Of people that could not die. Almost.. Godlike. He tapped his fingers on the desk. Could this all be related?

He went back to the documents that were suddenly much more relevant now. These birth certificates.. He thought these must be very good fakes to be used for some shady reason or another.. A lot of foreigners paid a lot of money for a new life in Ikebukuro. He knew something was up. There were doubles.. Even triple copies of the same person.. But from different eras.. He spread the birth certificates out putting the appropriate ones together. Each file having a photo attached.. It was unmistakable. His face serious now. How could this be? Was this meant to be proof of the morals turned immortal? He picked up the first file, he punched the name into the search engine, the first thing to come up was a newspaper article '1931: Incident on the Flying Pussyfoot'. His brain was moving so fast now he could barely keep up.

Izaya did not get much sleep that night.

He at some point had fallen asleep at his desk, he awoke when he heard people starting to move around in the building, starting their day of work.

He yawned and stretched as his mind slowly started to remember everything from last night. "So" He said to himself picking up two files and moving them closer. "Let's start with what I remember last" He looked down at the files. " Isaac Dian and Miria Harvent.. They are in Japan.. I guess this is where I start from~" He smiled to himself. "Immortal humans.. Are still humans after all~ I wonder what an exceptionally long life as an immortal human does to someone?"

He put the files aside, making a note to get a copy of all of them and moved the old book in front of him. Would someone really want to live forever on earth? No.. being earthbound forever was not an appealing thought.

He was still not a hundred percent certain on the whole 'Elixir of life' but their was defiantly something going on. Something big. Even if it was or wasn't true, it seemed that people were interested in trying to recreate it. These files, this book, stolen from the Nebula company…it was the key to finding out what this was all about. It gave him such a delicious amount of leads.

"Hmm…It seems we may have yet to see the peak of the war quite yet.." His smirk even wider then usual.

"Humans are~ so much fun, this is going to be so much fun!~" He laughed almost manically.

(Part 2 from ladychou)

Ronny flipped his silver pocket watch from one hand to the other, mesmerised by the changing tints of sunlight glinting off the surface. He had approximately four hours to return to the hotel where he would meet Maiza and the newly arrived Firo. He would make his way back in time to position himself at the same lobby chair Maiza had left him at this morning. To Maiza, the secretary's inertness would be as usual.

Ronny knew if he told Maiza that he had to meet someone, the bespectacled Mafioso wouldn't question his intentions. Maiza didn't know Ronny's precise reason for staying by his side, but he at least knew the demon was not doing it out of his obligation. As far as Maiza was concerned, Ronny was free to leave whenever he chose and yet he stayed. It was futile to question it.

That is precisely why Ronny didn't inform his companion of his absence. He had no reason to. This didn't involve him. In fact, his reason for standing outside a Japanese business complex in down town Shinjuku was in no way related to the life he had led for the past eighty years.

It had everything to do with the life he had led for centuries, as a demon.

Ronny yawned and stretched his arms out over his head. His tired bones cracked out sharply against the measured sound of the passers-bys cheerless footsteps.

Well, he thought, it was about that time.

Ronny leaned his face forward into the intercom's speaker and pushed the red button.

"Ko-n-ban-wa," Each syllable was followed by a long pause and the rustling of pages. "Ah, here it is. Ronny Sukiart to-mo-u-shi-masu. Orihara-san, yo-bi-ma-shi-ta-ka?"Following the soft thud of a closing book, the intercom buzzed off.

(*Nebula Pharmaceutical. A Sector, which was involved in research studies involving the immortals. It is mentioned in Durarara, Baccano and Vamp. Watch episode 9 in both Baccano and Durarara! )

If you like the idea of Rping the crossover PM me! I actually have a forum for it and you can join up and play~!