" No—everyone's fine—" gasped Harry, whose forehead felt as though it were on fire again. " Well...Avery isn't...he's in trouble...he gave him the wrong information...He's really angry..."
At the beginning of the twentieth century, on the Gulf Coast in the US state of Texas, there was a hill where gas leakage was so noticeable that schoolboys would sometimes set the hill on fire.
Obviously there’s no actual heat emanating from the pepper, but your brain is tricked into thinking that your mouth is on fire and that you’re burning up!
You can see it looks like at least three structures that are on fire there, where the lava has flowed deep around basically the like around multiple sides of the building.