She offers the "Witch Queen" side-quest, in which she asks Kyle Crane to forage for black mushrooms from a nearby cave during the night. She explains that she needs the mushrooms for her potions.
Dahlia:"So... At last you are here. I sent for you days ago. Are you always so slow? Perhaps you are resistant to my summons. Good. The strong ones are more difficult, but always so much more worthwhile." Crane:"You must be "The Witch"." Dahlia:"Such prideful contempt! But of course, you do not believe in such things." Crane:"I'm here because I've been told that you... have an ability." Dahlia:"You want to know how I walk among the immortui without drawing their attack. Is that not so?" Crane:"Is it possible?" Dahlia:"For you? No. You are far too crude and ignorant to obtain such deep knowledge. But there is another way. Something I could make for you." Crane:"It's fine... I'd be willing to trade." Dahlia:"You are only here because I wish it, and it is my wish that you have this ability. You will need it to be of service to me. Tonight you will go to the caves, while the volatiles are out hunting. Collect as many black mushrooms as you can carry, and I will use them to prepare a tincture for you. That is all require from you... for now."
—
Upon returning with the mushrooms:
— Dahlia:"This tincture will give you some ability to be among the immortui. It will not last long and it may disturb your sense. Solutions of greater potency can be prepared, but they will require more powerful agents. And greater risks. Now you are ready to serve me." Crane:"What do you want?" Dahlia:"From you? Why, nothing at all. I will never ask anything of you, Runner. You may go about your business and do exactly as you think you should. A man of 'free will'. But the truth is that you will always be doing my bidding. Even now, you are under my complete control. I will summon you again when the time comes. Go now. Enjoy your illusion of freedom. You may leave, but we are not done. You will be back."
Dahlia:"So, you are ready to try a more powerful elixir? It will make you more useful to me. But it will require agents of greater potency." Crane:"Just tell me what you need, Dahlia." Dahlia:"Bring me the liver of a powerful immortui. It must be a giant of great physical strength. Return when you have what I need."
—
Upon returning with the liver:
— Dahlia:"Yes! That's it! Let me see it! What terrible strength this creature wields. Perfect! Consuming this elixir may have consequences. Then again, it may not. If you think your system can endure more powerful agents, I can produce elixirs of still greater potency. I will summon you again when the time comes."
Dahlia:"I call and you come, and so quickly now. You are developing very nicely for me. You are ready to endure more powerful elixirs?" Crane:"I'll take all the edge I can get. Now, tell me what you need." Dahlia:"My elixirs effect the mind of the immortui - and what is in their mind, is first in the blood... so I must have what is in their blood. Bring me the kidney from the erupting one that sacrifices its body in attack."
—
Upon returning with a Bomber kidney:
— Dahlia:"Once more you have done my bidding! Give it to me! There, it is ready. Take it! My power grows as you become useful. But I can create mixtures of even greater potency. When you are ready, I will create them for you."
Dahlia:"I merely will your presence and you are here within minutes. Perfect!" Crane:"Dahlia, the elixirs are working, but I need one with no side-effects." Dahlia:"And you shall have it. But how quickly you have adapted. This would not be possible if you had not already been bitten. You are closer to them than you think." Crane:"I'm taking care of it." Dahlia:"With your Antizin. Such a feeble mixture." Crane:"Just tell me what I need to bring you." Dahlia:"I will put my thought into your mind." Crane:"You don't control me, Dahlia." Dahlia:"No. Of course. I am just a foolish old woman. Now think and tell me what you believe I will need." Crane:"It's not hard to guess. Your distillations effect the pattern recognition processes of the "immortui". So, now I assume you'll want a brain. Probably from one of the stronger ones." Dahlia:"Yes?" Crane:"From a Bolter." Dahlia:"And you simply guessed this? Well, if it gives you some comfort, so be it. Now go. Return when you have what I need."
—
Upon returning with Bolter tissue:
— Dahlia:"The brain of a bolter! Excellent! Take it. It is the most powerful elixir I can make for you."
