There's something to be said in having a firm control over himself, in having lived in the essence of compartmentalisation so long that the struggle of keeping himself and his stationary anchor separate was, as it were, not so much of a struggle. Sharing back down that line so mutual awareness was established had its own oddities, but what came off him stayed neutral, focussed.

Perhaps that also helped.

Going for Nellnell was a heartbreak of its own, and he knew his stationary partner would feel the bleed of that sorrow. I'm sorry, he thought, and perhaps that was heard, perhaps it wasn't.

But there she was, and there he was, in a wood he didn't know, unfamiliar entirely for its trees and shrubbery, such as any exists. The sky visible beyond twisting, reaching branches dancing with the light of broken colours, as vibrant and distracting as what he'd already heard in plenitude during the crossing to here, and imagined he'd be hearing again as he strove to bring her there, to the train once more.

It didn't make it easy. Standing there in train uniform because he still owned nothing but the train uniform and one shirt from Aquafir, Wei Wuxian lifted a hand, waving to her as he stepped through the trees.

"Nellnell," he said, dark eyes even darker with the apology that wasn't his to give. He still would, anyway. "I'm sorry. The Voidtrecker Express didn't manage to untether any of us. The longer Trainlings are staying on their worlds, the more unstable those worlds are becoming."

To save everything she loved, to save what needed her here, they would have to go.