A Visit From The Past

Part Two

Mass Effect x BBC Sherlock Crossover Fanfiction

Written by AseniaKarana (subaruchan192) and mythlover20


The fight with the Reapers is going badly, and Shepard needs help. Luckily Mordin has been bored, and has invented something very, very, unusual, and previously thought impossible: A TIME MACHINE! So Shepard uses it to recruit the one man who could make sense of the wasteland of the Prothean Data Cashes when the Shadow Broker failed. Plus his friend, and maybe a few others she did not intend to bring along.

Part One of my little sister's and my BBC Sherlock and Mass Effect Crossover. This is the result of one of our 2AM chat sessions, that sort of ballooned out of control because it was just too awesome an idea. This was written mostly for people who are fans of both ME and Sherlock, as we do not dip into their lores in-fiction, but if anyone needs clarification just send me a pm and I'll answer any questions in the A/N.

At the time we started writing this she and I were the ONLY people in the entire Sherlock fandom to do a Mass Effect Crossover, so hopefully, you will all like it.

Sort-of loosely following the events of ME3, but rewriting a lot and fixing as many mistakes that BioWare made as we can. Especially the two big ones. Cheers! xoxo


Shepard: *Stands in front of a large device* So, here we are.*Watches Mordin fiddle with the front of the device, at a control panel of sorts. Her eyes follow him as he moves around the tube-like structure, checking connections to the drive core, the cooling system, and EDI's computer backs.* This is gonna be interesting."

Thane: *Stands next to Shepard, staring skeptically at the huge metal tube.* What are you going to do with it, Siha?

Shepard: I'm gonna bring someone here, who might help us against the Reapers.

Thane: Someone from the past?

Shepard: *shrugs* Of course. If not, I would not need a time machine, right? *Crosses her arms and looks at the appeature of the strange machine, trying to guess how it works* Do you think Mordin could have just written an instruction manual? No, wait. It's probably better that he didn't. I doubt I could understand his fragmented sentences.

Mordin: *Stands, and turns to Shepard.* It is ready. What time is needed, Shepard?

Shepard: *Thinks for a while, tilting her head left to right.* Well... 2015... London. 221B Baker Street. Say… midday, April the 15th?

Mordin: *Whistles a little melody while entering the data into the machine.* He pulls a lever, pushes some buttons, then stands back, waiting.*

Thane: Who are you bringing back?

Shepard: Wait and see. Cortez, Vega, be ready for anything. We don't know if it's going to work.

Cortez and Vega: Aye, ma'am!

Mordin: *Smiles at Shepard.* Doubting my abilities, Shepard?

Shepard: *Smiles back at Mordin and shakes her head.* Never, Mordin.

Thane: I have a bad feeling about this.

Shepard: *Lightly rests a hand on Thane's arm.* It will be fine. If this works, these people I'm bringing in will be able to help us.

Thane: *Sigh* I do hope you're right, Siha.

Shepard: *Gently squeezes Thane's arm before letting go. She crosses her arms and rests back on her right leg. She turns to Mordin.* All right, Mordin. Light her up.

Mordin: *Nods enthusiastically.* Yes, Commander. *Pushes one last series of buttons, and stands back away from the machine.*

*The machine comes to life, lights flashing and the exposed gears turning. Suddenly the shuttle bay goes dark, and sounds from the engine stop. A small fire catches light on one of the cables connecting the machine to EDI's core, via an access panel in the wall. James grabs a nearby fire extinguisher and rushes over to put it out. Smoke and fire retardant fill the bay, cloaking the machine and the people surrounding it from view. James manages to put the fire out, and stumbles back to his previous position, extinguisher in hand in case it was further needed.

*Shepard reaches out and grasps Thane's hand just as the lights flicker back on, and the noise of the drive core softly vibrates throughout the ship. Shepard breathes a sigh of relief.

*Immediately all look towards the time machine. Grey smoke surrounds it, obscuring the open door from view. Shepard releases Thane's hand, and takes a step closer. She motions with her hand for Vega and Cortez to ready weapons. She steps closer still, and tries to peer into the fog.

*Suddenly a shadow appears, hunched, stumbling forwards. Immediately behind it a second appears. Shepard retreats back to Thane's side. Vega and Cortez move into position, weapons ready. Thane's hand flairs slightly with his biotics. The shadows stumble closer still. Shepard raises a hand, ready to give the order to fire.

The shadows cough. Shepard frowns, lowers her hand, and waits for them to come to her.

The tall figure stumbled out first. At first glance it appeared human, tall but emanciated. He had a mop of curled brown hair, longer than was fashionable for human men. The second figure too appeared human, though shorter, blonde, and with a fashionable military hair cut. The clothes they wore, too, were unfashionable for humans, almost vintage in appearance. A long coat and scarf were all that were visible on the tall human. One the second trousers and a think jumper and jacket were easily distinguishable. Both were still hunched over, coughing, unhearing and unseeing of anything around them, aware only of each other.

Shepard: *Whispers* It's them. It worked. *Smiles slightly* It's them: Holmes and Watson.

Sherlock: *Steps out of the fog that surrounds the time machine, coughs horsely, then immediately straightens and loosens the scarf around his neck. Takes a quick look around, but sees nothing but John in the fog.*

John: *Coughs and tries to wave the smoke away, and fails. Says in a hoarse voice.* Sherlock, what the hell was that? It's foggier here than on the river bank at dawn.

Sherlock: *Squints and tries to look through the fog. Shakes his head, and replies equally hoarsely.* I have no idea...but it looks like we were transported into one of your stupid science fiction movies, John. *Sarcastically.* Maybe were going to meet Spock?

John: *Stares pointedly at Sherlock.* Are you on drugs again?

Sherlock: *Rolls his eyes.* Oh, don't be silly. Of course not! That would mean you are as well.

John: *Blinks* Well, that has happened before…

Thane: *Frowns at the two new, strange humans.* Siha...who are they?

Shepard: *Gestures grandly to the smoking time machine* Thane, my love, say hello to the most famous detective in human history: Sherlock Holmes!

John and Sherlock: *Hear the voices behind them. They turn, and stare, stunned.*

John: Ah, Sherlock? Who are they?

Sherlock: I think the more appropriate question would be "What" are they?

John: You know what I meant.

Sherlock: Of course I know. I'm not stupid.

John: Well...

Shepard: *Steps forward towards the two stunned men.* Mr. Holmes. Doctor Watson. Welcome to the 23'rd century. I've brought you here because we need your help.

Sherlock: *Shakes his head and frowns.* Funny. Even illusions need my help these days.

John: *Addresses Sherlock but continues to stare at the people in front of him.* Wow... then this a strange trip. Maybe molly slipped something into our coffee.

Sherlock: *Shakes his head and turns his back to the "apparitions" surrounding him.* No. Molly wouldn't do that. Too forceful for her. She's not into petty revenge.

John: I don't know.

Sherlock" *sigh* She still hasn't forgiven me.

John: *Looks back at Sherlock.* I wouldn't have forgiven you either, after that.

Sherlock: *Hums indifferently and looks around.*

John: She was in love with you, Sherlock. *Mutters* Though God only knows why.

Sherlock: *Sighs* Which is why she wouldn't do this. Someone else must have drugged us, but who..?

Shepard: *coughs repeatedly to gain Sherlock and John's attention* Uh, hello? You can see us, right?

Sherlock: *Spins back around and yells at Shepard.* Oh, shut up! I don't have time for petty illusions.

Shepard: We aren't illusions. We're real, and you're in the future.

Sherlock: I highly doubt that. Time travel is impossible. *turns back to John* Now, think, John, think! Who would do something like this? Who would have access to the morgue, the tea room, and who can get by the staff unseen. The janitor? No, he's been there for years. He would have done this by now…

Thane: *to Shepard* I'm not quite sure that this was a good idea, Siha.

John: *Turns around, and gets a good look at Thane. He jumps.* Jesus! What the fuck is that?

Sherlock: *Sighs* Only just noticing now, John?

Thane: *Sighs as well.* I am a drell.

Shepard: Look, I understand that this may be a shock for you, but this is real. We are not a delusion. Just relax, and everything will be fine. *Looks to Mordin* Mordin? Could you make sure they're all right.

Mordin: Of course, Shepard. *Mordin moves closer to John and Sherlock. He raises his arm towards John to take a scan.

John: *Draws his handgun and points it at Mordin* Don't move!

Shepard: *raises hands* Calm down. We're not going to hurt you!

Mordin: Violence unnecessary. Collecting medical data. Biorhythmic scans. Nothing to cause harm.

John: Yeah, I'll be the judge of that.

Shepard: We brought you here for your help, not to hurt you. Put the gun down, and we'll talk about this.

John: Oh, no. I don't think so.

Sherlock: *Looks around. Notices the armed marines with strange weapons pointed at them.* Put the gun down, John.

John: Not bloody likely.

Sherlock: *Moves closer to John* Do you really think your handgun will be of much use against those. *Nods towards Vega, Cortez, and the armed marines behind them.*

Shepard: *Takes a step closer towards John* There are half a dozen marines surrounding you with Avenger assault rifles. Be smart, and put the gun down, Captain.

*John glances around, and realises the situation. He begins to lower the gun. Mordin takes another step closer, and raises his arm again to take his scans. John jerks back, and instinctively raises his arm again. Thane reacts, and disarms John. Sherlock tries to defend John from Thane. The two humans attempt to fight Thane.*

Shepard: *sigh* Mordin? Do you mind? Before someone gets hurt.

*Mordin nods, and raises his arm. Thane jumps back, and Mordin releases a mild neural shock. Sherlock and John twitch, and fall to the floor, unconscious.

Thane: *Sighs* Are you still sure this was a good plan, Siha?

Shepard: *Groans* Not anymore, but I'm getting desperate. *She gestures behind her to Vega and Cortez* Vega! Cortez! Take these two up to the med bay and restrain them.

Vega: Sure thing, Lola.

Cortez: Yes, Commander.

*Vega and Cortez lift the two men and carry them to the elevator.*

*Thane hands Shepard John's gun.*

Thane: Are you certain these are even the men you were looking for?

Shepard: *Looks down at the gun.* British Army Browning L9A1, issued to British Army officers service in Afghanistan during the early 2000s. Yeah. I'm sure.

Thane: I hope you know what you're doing.

Shepard: *looks up at Thane* Doubting me, Thane?

Thane: *Looks at Shepard. Smiles.* Never, Siha. *Looks towards elevators* Them? We'll see…