Nope just bound up happily to the young man in the Jin robes, who seems quite happy to see him. 

"The dog is harmless," she reports. She pulls a snack out of her sleeve to munch in annoyance about being startled over nothing.

"...Sorry," he says, slowly releasing his grip on Lan Zhan's robes. "I've been afraid of dogs since I was a kid." 

(Wangji multitasks between shielding Wei Ying from the dog and glaring at Jiang Wanyin.)

"Oh, I see, I'm sorry. I don't see it coming near you, at least not if I go over there and sit around for the next while."

He shudders. "Thanks." 

"You're welcome. I will plan to sit over there for the next while and receive reports of whatever you two find, shall I? I can temporarily let you send me telepathic messages, but I will take that right back if you abuse it."

"Gotcha." 

If she sits over there for the next while to receive reports then Wei Wuxian gets in a loud argument with a peddler who's selling fake charms with what he claims is Yiling Laozu's face on them (it is incredibly ugly and stylized and nothing whatsoever like what Wei Wuxian looked like in his original body) but after enough quarreling has occurred he disburses a local legend about a nearby mountain range that supposedly has a castle that eats people on it. 

"We've got a people-eating castle, that's exciting and by exciting I mean bad. It's a miracle people on this planet survived long enough to develop civilization! At least the magical threats in my world could be handled in a low-tech culture by learning astronomy and murdering the occasional preteen!"

"I mean, that's what cultivators are for, mostly. Isn't this the Nie sect's jurisdiction? Why haven't they done anything about it?" 

"Do I look like a Nie to you? Maybe it used to spit people out again and this is recent."

"It might've come up in the future vision!" 

"Not the one I got but if you want to plan to go bother the people-eating castle or the nearest Nie I can tell you what happens then."

"It sounds like the kind of thing that needs bothering!" 

"Try to look unpalatable."

"Ah, I think that might be doomed to failure. What do you think, Lan Zhan?" 

"Ridiculous," he says, ears flushing red. 

Giggle.

She will plan to sit over there some more and receive people-eating castle reports.

Within the next six hours they can counterfactually make their way to Xinglu Ridge where the man-eating castle is supposed to be and discover: 

-A small handful of remarkably pathetic walking corpses 

-A supernatural maze to keep people out 

-A number of strange round castles with absolutely no entrance or exit points

-If they loiter long enough then Jin Ling and his dog make it through the array, blow a hole in one of the castles and go inside

When they follow them in, they discover that

-The castle contains a coffin with a saber inside

-The walls are full of corpses 

-The wall apparently dragged Jin Ling inside; they get him out but he's really out of it and has a curse mark on his leg. 

Wow! Suppose she tells them all that and suggests they ask Jin Ling what the fuck he had in mind going into a people-eating castle.

That sounds annoyingly likely to involve interacting with Jiang Wanyin. Which means either talking to him himself or having Wei Ying do so, which, no, not that latter one. At least since there is a dog involved he can actually, miracle of miracles, convince Wei Ying to stay with Isabella instead of accompanying him to speak with Jiang Wanyin and Jin Ling. 

It...does not go optimally. Jiang Wanyin wants to know what's up with his weird traveling companions, the one in the mask and Mo Xuanyu, who was afraid of Jin Ling's dog; Wangji refuses to tell him anything but this slows down the process of extracting information and Jiang Wanyin is really alarmingly focused on the part where Mo Xuanyu was afraid of Fairy; apparently he never was at Koi Tower. Lan Wangji is really not happy with the attention Jiang Wanyin is paying "Mo Xuanyu." 

Anyway, after the hunt on Dafan Mountain wound down without anybody finding anything except the Deity-binding nets Jin Ling had apparently set up (and with which he caught nothing whatsoever save fellow cultivators) Jin Ling is apparently trying to gain face by doing something about the supposed man-eating castle. 

Well, that's sort of admirable in principle. Fortunately the real Lan Wangji will be spared the necessity of having this conversation. [Not sure what to suggest next.]

[We probably will need to either prevent Jin Ling from going into the castle or rescue him, in real life. And probably do something about the castle? It seems, uh, concerning, also I'm really curious what's up with the blade in the coffin.]

[Yeah, that's weird! And who are all those corpses? The infinite supply of corpses in weird locations around here is starting to strain credulity! Someone has to have purposefully interred them there.]

[No disagreement whatsoever on the castle being extremely weird. And you said we said there were more of them?]