there's a lot of great lines here. I think next time you should consider using dialog tags, " " when characters are speaking. Like this:
"Of course." His voice trembled a little.
It makes it easier for the reader.
I liked the ending. It caught me by surprise! He placed dynamite to blow them all up! This version of Leitner has him be an honest witch-hunter. RIP
Thanks, @dirge for your words, next time I'll do it so. Thanks again. And abour Leitner...yes, RIP.