I'm not sure they're missing arms; it just said they were broken, so likely they're in slings or something. But yeah, it's not very visually obvious. :)

I haven't reread TYK recently enough to have caught how that line was repurposed! Thanks for sharing. :)

I wonder if Shen Shen listening to her might be slightly foreshadowing him helping WKX later on.

Ah, yeah, definitely feels like planting the seeds of Shen Shen not being totally opposed to ghosts he knows have human feelings. :)