Adjusting to what had just occurred some - whose name was Au'kultz - let out another humming noise. It still didn't understand what was happening, but it knew one thing - There was an opponent to vanquish. It would set out to do just that.
Au'kultz sensed where Junkil was, but had no desire to move around the wall to get to him. Instead, it became intangible, it's body taking on an green, ethereal appearance, shifting and shimmering slightly in the air. Descending, Au'kultz sank into the ground and continued until it was half a metre beneath it, then move towards Junkil, moving to the wall behind him, and ascending inside it. When it had floated up some four metres, Au'kultz silently floated out of the wall, and became a physical entity again.
Now behind and above Junkil, Au'kultz made a gurgling noise, which was Junkil's only warning signal if he hadn't noticed Au'kultz's position already, as shortly after this, it sprayed 500 millilitres worth of brown-ish liquid at him from the pores in its "ribcage", the liquid mostly aimed at Junkil's upper back and shoulders with reasonable accuracy.
The liquid would rot any organic substances it came into contact with, and corrode inorganic matter, at a rate of one gramme of matter per 25 millilitres.