While I like "sparked to life" very much, you use "flickered to life" about the torches in the previous paragraph. I’d pick one to keep and one to change.

I don’t think you need this. The questions before are indications of him thinking to himself and stating it detracts from the importance of those questions.

Again, this either needs a comma or a start of a new sentence after "wrong". 

I very much like this sentence and the history it hints at. I think it needs a comma before "yet" though.