Lan Zhan looked too old, sometimes, staring into the blinding sun of dawn. He looked like he had gone somewhere Wei Wuxian couldn’t follow, beyond the scope of the horizon. Resentful energy swirled black and terrible at that thought, and Wei Wuxian laughed it to shattering pieces. Lan Zhan had stayed, but that didn’t mean he would forever.

"Zewu-Jun. You once told me about a house surrounded by gentians, where you visited once a month, and how Lan Zhan still waited there, even when the door no longer opened." Xichen feels light-headed. He feels shocked, and angry. He has never told anyone such a thing, but Lan Zhan is giving Xichen a look of utter betrayal. "You told him?" Lan Zhan whispers. "When?" Wei Wuxian takes Lan Zhan's hand. "About twenty years from now." Wei Wuxian starts again from the beginning.

or, Catharsis: The Fic In which Wei Wuxian, shortly after being called into Mo Xuanyu’s body, is further forced into the past, where he proceeds to tumble his way into absolutely nailing a time travel fix-it.

He can’t get Jin Guangyao’s words out of his head. If he’d only believed in Wei Wuxian, if he’d only been willing to stand up for him, could it all have been avoided?