(Now I'm envisioning Sang Zan coming across a slightly glowy box while trying to organize the library; he assumes it's a bit of newfangled technology he hasn't learned how to deal with yet, sets it aside to ask Wang Zheng about later, and then distracting events are distracting and he never gets back to it.)

Haha, that's great. I would read that fic! (And honestly, leaving the Lantern there was actually safer than them keeping it on a pedestal in the lab. Zhu Jiu went after the Hallows he knew about, repeatedly.)

Oh, I thought that was something Lin Jing did? But I admit I was confused as to how he did it.

So was he, iirc. :-)