A knock disrupts Yennefer's vigorous writing. She mumbles to herself and shoots a look towards the chamber door.

"What is it?"

Triss' voice answers back to her, "You haven't come out of that library for five days. I doubt you've even eaten anything."

Yennefer furrows her brows, trying to remember when she has last eaten. Once her eyes fall upon a discarded plate to her left, she calls out, "I have. However, I also have more important things to think about, so if that is all you've come to say, thank you, Triss, but I am eating. You may let me be now."

Yennefer can hear the groan from her place at the reading desk, and in a moment, Triss has found her way through the door. She strides over to Yennefer and sits right in front of her.

"What are you doing?" Triss asks in a soft voice.

Yennefer's eyes don't look toward Triss as she answers, "Having a tea party."

Triss scoffs at her and lays a hand down on top of the pages Yennefer is reading from, "I mean it, Yennefer. What are you doing?"

Eyes finally meeting Triss, Yennefer takes a deep breath, searching Triss' eyes carefully.

Yennefer then states, her tone hardly above a whisper, "I've found a way to bring her back, Triss."

To her credit, Triss doesn't blanch at the admission. She seems to have already known that that was what Yennefer was researching.

"And how are you going to do that?" Triss asks measuredly.

Yennefer swallows a lump in her throat. She takes a breath, turns the pages of her scribbled notes towards Triss, and whispers, "Chasm magic."

Triss was ill-prepared for that response.

Her eyes widen, her jaw drops open a fraction, and the sharp inhale of breath is proof of that.

"You can't-"

Yennefer cuts her off, her eyes hard and fierce, "I can."

Triss shakes her head. She places a hand over Yennefer's. Triss holds it tight, despite Yennefer trying to pull away, "No, you can't, Yennefer."

Yennefer's voice breaks as she asks, "And why do you think that?"

"It cannot be done, Yen. That kind of magic has been eradicated. Even if you somehow managed to get all the ingredients," she pauses before continuing, "the spell itself won't work."

Yennefer shakes her head adamantly as she squeezes Triss' hand, "You don't know that. You're quoting text that's been passed down for eons. You know mages would heed warnings of the impossibility of such magic rather than try for themselves. There is no proof that this magic won't work. And I'm willing to have a shot at it rather than sit idly by, all while knowing there's a chance I can bring her back."

Triss's face falls, and she looks forlorn. Yennefer stands up abruptly and glares at her angrily, "Don't you look at me like that, Triss. Don't look at me like I'm some sad, helpless little girl who doesn't know what she's doing."

"Oh, Yennefer, that's not it at all."

Triss stands up and walks over to Yennefer so she is facing her head-on, "I simply don't know what you hope to achieve by attempting something that hasn't been accomplished in millennia unless what you hope for is to garner yourself more heartbreak and unease."

Yennefer scoffs, though her eyes make clear the hurt she feels, "Just because no one has written about being successful, does not mean someone hasn't tried and succeeded."

Triss takes a deep breath and counts to three in her mind before speaking, "I don't want you to lose your way, Yennefer. I don't want to lose you as well. Think of Ciri."

Yennefer swallows a lump in her throat, "I am thinking of Ciri."

"Are you?" Triss asks, her eyebrow raised in a slight challenge.

"Of course I am." Yennefer all but barks out rapidly. She inhales a shuddering breath, then continues in a much calmer voice, "All I think about is Ciri and Tessaia. Always."

"Then you must understand that Ciri will be lost without you. It's bad enough that the Witcher and Tessaia are gone from her. She needn't have you go as well."

Yennefer swirls around and faces away from Triss, a storm raging inside her.

"If I don't do this, or at the very least try, then I am useless to her. What is the point of having this much power if I can't use it when I need it most?"

Triss watches her in silence for a beat. She takes note of Yennefer's rigid posture. Yennefer's ramrod straight back, her muscles rippling with the desire to act. Triss watches her shoulders as they rise and fall with her rapid breathing.

"What can I do to help make this experiment successful?" Triss finally breaks the tense quiet.

Yennefer's ears perk up at the question. She cautions a glance towards Triss, not daring to believe what her meaning is behind the question.

"Are you telling me that you mean to help me?" Yennefer asks, her violet eyes searching for a hint of falsehood.

Triss gives her a small smile, her eyes warm as she holds Yennefer's gaze, "I do mean to help you. Of course I will help you," she pauses and breathlessly, with all the affection she can pour into the words, continues "silly girl."