Innkeeper

The hospital is probably a better bet. Besides you can get the higher quality stuff there. You doubt if you'll have that much of a problem getting the supplies too, it isn't an uncommon thing for a few things to go missing here and there.

"We better go back to the hospital, I'd rather be on the safe side."
"Good man, come on we'll take the carriage back to the hospital, my brother will drive it, he knows all the short cuts in this city and isn't squeamish about running over dumb fuckers that get in the way."
"Erm, okay then." You reply.
"Just be quick about this shit, if you take too fucking long and Edmond dies, you three are going to be joining him!" Reg reminds all of you.

You, Hans and Wallace leave the Troll's Breath Tavern and set out for the hospital. On the way there you make a mental note of what to say if anyone at the hospital asks you any questions and where else in the hospital to search just in case you don't find what you need right away.

"Tell me, do you think Edmond is a fair man?" Hans suddenly asks you.
"Huh?"
"I said, do you think Edmond is a fair man? Tis not a hard question."
"Uh, well sure. I mean I had a deal with him in the past and he lived up to it."
"Yeah, I know all about that so called deal. If it were truly a deal, you and me wouldn't be having this conversation. I hope you realize this isn't going to be the last time he calls on you again."

You don't say anything. You were trying not to dwell on the possibility of such depressing matters.

"Look friend, I know you. You'd rather not have to live your life being connected to the underworld, but you were in a tight spot, so you resorted to desperate measures. Sort of like your father no?"
"Yeah…I guess so…" you answer not really thinking of that parallel before.
"Well, I sympathize. Trust me I do. I mean I know what it's like to get so far deep into something that you don't know how you're ever going to get out. Hell, I never intended to be part of the Crimson Talons, but I had to do it not just for my survival but my brother's as well."

You say nothing and wait for Hans to get to the point he's going to make.

"What I'm saying is, you don't NEED to have this hanging over your head forever. You could end it tonight."
"Hold on, if we're talking about what I think we are, you heard Reg, he said if we took too long he'd have us all killed."
"I didn't suggest that. I mean that hospital surely has a bunch of things that shouldn't be used in excessive dosages."
"You want me to kill him? I can't do that, I'd get killed by that Sotakan! If not immediately then certainly soon after he suspected that I had something to do with his death!"
"Well I figured that you'd be a little creative in that area. Perhaps give him something for the pain. Something that creates a plausible tale that the man just died in his sleep. It's not like that lizard is really going to put two and two together. It's not the brightest thing; it's just really good at following orders and killing people. I wouldn't worry about it anyway. The lizard will be taken care of soon. And you needn't worry about anyone else potentially retaliating either, Edmond's never been too popular and what few loyal cronies he has other than the lizard will also be dealt with."

You bury your hands in your head at the thought of all this and how you got here in the first place. If you go through with this, you won't just be an accomplice the murder anymore, but a full blown one. You think about the irony of being a doctor. You're supposed to be keeping people alive not killing them.

"Look, I know this is all a lot to take in, but just think. If you do this, you're free. Free to go about the rest of your life as you see fit. And getting rid of Edmond would be a favor to everyone; he's an evil bastard. Now I'm not saying I'm a saint, but the man is unnecessarily brutal. I'd at least try to put an end to some of the random violence that goes on in the organization and get back to focusing on business. Hell, I've got even a long-term plan of trying to make the organization legit one day. Like I said, I didn't really want this life, but it was survival at the time."

If Hans is trying to identify with you on some level to get you to help him, it's working, because you're starting to seriously consider going through with this plan.

Eventually you get to the hospital and you tell Hans you'll be out as soon as possible. It's the graveyard shift so you don't run into too many people you know that ask questions. In fact nobody really pays too much attention to you at all, but you decide to play it safe and head down to the supply room in the basement to take what you need.

After grabbing a few syringes, disinfectants, bandages and the like, you break the lock of the cabinet with the pharmaceutical supplies. You grab the pain killers immediately, but then you look for something that might help you with the other problem.

"Incitahol? What the hell?" you say to yourself, picking up the small vial. This stuff shouldn't even be mixed in with the regular drugs. It's a powerful experimental concoction! It was supposed to be a "miracle" drug that increased the body's natural healing ability even greater than that of mountain trolls and was first used on dying patients. Unfortunately what the drug really did was the speed up the death process and bring them back as zombies. It was banned by most civilized places and is highly sought out by lazy necromancers who don't have the natural ability to raise hordes of undead.

You'd worry more about finding this if you didn't have your own drama going on right now. In fact this would probably be the perfect thing to take with you. Incitahol doesn't cause pain and quickly puts the patient into a coma and death follows soon after. (And then it's zombie time) You'll have to explain some of this to Hans though so he's prepared.

Part of you wonders if you should really go through with all this though. There's no guarantee that Hans is telling you the truth and you might be just trading one master for another. In fact he might just blame you for everything and have you killed when he takes power.

Of course another way to handle this is to inject this stuff into Edmond and not tell him what's going to happen. Chances are undead Ed might kill everyone nearby. Incitahol does increase the reflexes and strength after death making for a rather lively zombie. The problem is this is a very risky endeavor not to mention severely irresponsible.