2. What are readers supposed to infer is the actual reason a doctor was not called to examine Mayella following the attack

a question like this requires the excerpt to be included in order to answer the question.

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.  

a) madame podtochina used witchcraft to make it disappear.