Robin the ostler and Ralph have stolen one of Doctor Faustus conjuring books. They intend to use it to conjure demons that will serve them and do whatever pleases them. Robin states that first he will use it to "make all the maidens in our parish dance at my pleasure, stark naked, before me".
I would describe the main character having lost his mind.
To Empathize with the antagonist you first need to determine who the antagonist is then find out there what they stand for and how you would relate to this in every day life.
The protagonists hard to determine because we know of the victim and the antagonist but to find them we have to look at the characters actions. So maybe it would be the police, but i would recommend looking it up just in case. Hope this helped!
Hliðskjálf is the name of Odin's throne.
The author probably meant that Dee is in a hurry to leave.