Hulrun's subordinates are very much on alert. Firstly, the Prelate would never countenance any less, and secondly, while they have Ramien and one of the Wardstone vandals, the other two vandals are still at large. The fact that they're likely to attempt to free their co-conspirators is, overall, a good thing--it makes it more likely they'll be taken into custody sooner rather than later--but that doesn't change the fact that it would be unconscionable to let them slip by by not paying enough attention. Besides, there are, in fact, demons around, and nobody wants to die horribly on an Abrikandilu's claws.
But they still have a certain level of expectation about what kind of thing they're keeping watch for, and an intense flare of light from behind one of the nearby buildings wasn't it.
The glow doesn't diminish after a few seconds, either, and it's just as the men are getting over their surprise that the source of the bright light shoots out from its origin point and towards the temple.
They aren't caught flat-footed; before it's crossed half the space from where it began to their position, a volley of crossbow bolts has already been loosed towards it. Some of them miss entirely, and some of them bounce off of--whatever it is--either it's invisible or just glowing brightly enough that it can't be seen through its own aura--but some of the bolts sink into what sounds by the thunks of it to be flesh. It is, unfortunately, flying, too high for them to sword at it--
And then it reaches their position, and abruptly becomes visible when a long, dangling tongue drops down from it to entangle around one of their number.
The creature is grotesque--five fleshy spokes radiating out from a center seemingly composed mostly of mouth, sticky tongue and sharp teeth, and every square foot of its skin containing at least one staring eye, arranged irregularly over its surface.
The man currently ensnared like a bug by a frog screams. He has the maneuverability to draw his sword, and does so, releasing the prisoner as he does so--they can always recapture the Desnan later; whatever kind of Abyssal beast this is needs dealing with now.
The tongue retracts back into that horrifying mouth the first time someone successfully hits it with a sword, but it doesn't stop there; it lets out an absolutely horrible noise which, on the plus side, does result in men from the other side of the perimeter scrambling over to help against it.
Even the Prelate storms out of the temple, several rounds later, looking impatient and irritated right up until he sees the thing that his men are attempting to deal with.
After that, the tides begin to turn; instead of staying out of sword range for the most part while still harassing the inquisition with relative impunity, they actually manage to begin to drive it off. Not that just driving it off is sufficient, they've got to actually kill it--
but after they've chased it some way away from the temple, it just vanishes. And enough demons have teleportation-related spell-like abilities that they can't surmise that it's the kind of thing that just has some kind of existence failure when it dies.