(Thank you @wrestlegirl1 for trusting me with Amethyst).

The rehearsal space hummed with a gentle, ambient warmth. Amethyst was at the piano, her fingers tracing a melody that sent a flock of luminous doves soaring through the air. Claude stood opposite, his gloved hands shaping the air, giving the illusions a soft, audible whoosh as they passed.

“Oui, like that!” he encouraged. “Give them joy!”

The stone door scraped open. Maximillian entered, a walking cacophony in his harlequin suit of clashing canary yellow, violet, and crimson. His face was weary from his dealings with Arcadia, but his eyes were sharp.

“An impressive harmony,” his voice cut through the music. “Projection of emotion, given form.”

Amethyst’s hands stilled, the doves dissolving. Claude turned.

“Maximillian! A pleasure. We are just restoring the soul of this place.”

Maximillian’s eyes fixed on Amethyst. “You are projecting your will onto the world. But has it occurred to you to shape your own?”

Amethyst blinked. “I don’t understand.”

“You were a 'Lego playset' not long ago,” Maximillian said flatly. “You were changed against your will. Have you never considered doing it by your will? Your 'father' was a master of the art. It is in your blood.”

At this point Maximilian created an illusion of Amethyst transforming into a hawk.

Claude’s eyebrows shot up. “Pardonnez-moi? You suggest she become… a rabbit? The application seems niche.”

“I am considering Briar,” Maximillian said, ignoring Claude.

“She is not just jealous. She was a guardian who understands lineage. She is terrified of you, Amethyst. She sees you as the 'last known key to old magic,' and she is worried about being usurped. This movement in the forest to end you? It’s not malice. It’s fear. They want to end the threat they believe you represent.”

“So they want to kill me,” Amethyst said, her stomach knotting.

“They want to end their replacement,” Maximillian corrected. “So, here is my counsel. Your next rehearsal should not be about illusions. It should be about becoming. Stop trying to approach this dryad as Amethyst. It's time you learned to be something else.”

“Become an animal?”

Claude sputtered, his theatricality gone.

“Maximillian, that is madness! It is a magic that consumes! She could be lost!”

“Better she unravel it herself than let Briar do it for her,” Maximillian retorted. His harlequin suit seemed to ripple with impatience. “I seem to recall I was the one who pulled her back from that unseelie infection. She is stronger than you think, Claude. She has to be.”

Amethyst swallowed, the memory of that horrifying, near-fatal event giving weight to Maximillian’s words. The fear of Briar mixed with a deep, terrifying curiosity. “How?” she whispered.

A thin smile cracked Maximillian’s face. “Not here. This place is about form. You need to go somewhere that understands flow.”

He held out a hand. Amethyst looked at Claude, who gave a single, worried nod. She took the offered hand.

The world tore.

The smell of stone and piano wood was ripped away, replaced by an scent so overpoweringly green it was almost suffocating. They stood in a grove lit by a vibrant, breathing emerald-gold light.

"A pocket of Arcadia," Maximillian said. "Your problem, Amethyst, is one of perception. The dryad you met, Briar... she is an aberration. A bitter, twisted thing, more like a malevolent, angry bush given legs."

He led her deeper into the grove, toward a single, ancient willow tree that seemed to pulse with a silver light. "You need to see what they should be."

As they approached, a figure stepped from the trunk of the willow. It was not a creature of rough bark and rage. This being was humanoid, with skin like smooth, polished birch, hair like trailing willow leaves, and eyes the color of new moss. She was beautiful, serene, and radiated a deep, calm life.

Amethyst stared, her fear momentarily forgotten, replaced by awe.

The dryad’s voice was like the rustling of leaves. "He brings you, 'key.' Why?"

"She needs to understand," Maximillian said, his garish suit a stark contrast to the grove. "She met one of your fallen sisters. She needs to learn to change. Show her."

The dryad smiled, a slow, ancient expression. She turned and placed a hand on her willow. Her form flowed, her body dissolving into light and leaf, merging back into the tree until she was completely indistinguishable from it.

A moment later, she emerged again, stepping back onto the mossy ground, whole and unchanged.

"Briar is a creature of rage," Maximillian said, his voice low. "She clings to a single, dying form. This is a creature of life, attuned to her heart-tree. She understands that to live is to change. This is what you must learn."