S'Muryph Law.
Everything which can go wrong, will go wrong.
The only dependent variable is the perception and position.
Which side of the law you are on, and how the law views you.

So a kobold with magic, an ogre boxing machine, and an assassin troll. And this town was called Birchvale and evidently Kobold settlements only lasted roughly a week. Oh and it was evidently that time of week. Safe to say that the information gleaned from this was coming at R'lyeh rather fast, and he had to processes everything which was going on just as quickly.

First, human shows up, desiring to kill us all.
Then rest of bar flees.
Unseen troll reacts first and attempts to assassinate target before chance to strike.
Kobold follows up with Electrical magick which seemed rather effective.
Ogre comes out from nowhere, grabs a makeshift shield bashes human with a table.
Insults hurled in-between actions certainly.

"Now see here Good Sir, I will not stand here idly and allow you to destroy this village on some wanton rampage!" Rather strange that he so eloquently put it. He did have a bit of ire towards the human, rage towards an entire species really given the last interaction with them. Analysis of the biological functions of the Knight were difficult to access, however given the status of the man being winded, slightly shocked and stabbed to the point of his armor being pierced, R'lyeh surmised the man did need dire medical attention very soon after. Maybe he would listen to reason if his life was on the line and as such, a cunning plan was devised by the researcher.

Poison, well toxins really as once injected into the body's blood stream it would be a slow and excruciating pain until it reached the tipping point and death would occur. Internal damages, unseen and unnoticed long before it was too late and death occurred within an hour or two. Like a spiny sea urchin's venom, or that of a jellyfish sting. Poison was one of the elements the Sagahin were familiar with, by the numerous species of aquatic life which employed it to some degree. This man would feel the same, enough poison to slow him down and let him think about his own mortality and perhaps morality as R'lyeh would surely see to make him flee and leave them then alone.

All things being said, he muttered his incantation over the tip of his spear coating the head with a vile and virulent venom which oozed and dripped along its shaft. He had to be careful himself, using the old spear as a method of delivery, given the actions of the ogre to place some distance between them was difficult shot, even for a Sagahin. He spotted his chance between the gaps in the knight's armor, designed for mobility but of course allowed access to weapons to the disadvantage. A small spot the size of a silver piece.

With a prod he hit flesh.

But wait, the wall had finally had enough, and the structural failure had occurred. As if by some good fortune, certainly not R'lyeh's, a large piece of the wall had dislodged itself and managed to hit the knight squarely. Just enough to nudge the Knight forward from the impact. This in turn guaranteed the knight impalement as the spear gouged itself just under his arm, piercing through the blood vessels and severing the blood lines. Not according to plan, not at all. He had now just mortally wounded the man he hoped to glean information from regarding his stolen tablets.

"Oh dear! Hold on Sir! I can heal you with a spell..." Embarrassingly however, he was out of mana and could not muster the spell before the human succumb to blood loss with his last word cursing poor armor design and breaking fourth walls. Well there was nothing they could do now. R'lyeh had just committed murder, and was unsure of what would happen now as he froze up looking around at the empty bar and his fellow fighters. "Erm... I'm terribly sorry I had no intention of Killing him outright like that I... The poison would do no good if his blood was... I just... The wall and..."

Suddenly his attention shifted at the human's satchel, a pack of interesting goods probably, as he opened up the bag to find two vials of liquid and nothing more. He had expected some form of map or detailed bits of writing, but maybe that was on his pack animal. Wait a moment. Pack animal? A land-dwelling animal? Oh happy day! Setting the contents of the satchel aside the bloody corpse he would rush out of the bar, wary to watch the crumbling wall and move to examine the Horse outside the bar.