In Book 2 of 'City of God' Augustine continues to speak out against polytheism declaring that myth sows filthy fancies about the gods; while political theology reaps by keeping them alive. The former spreads lies, the latter gathers them up. Next, Augustine goes into a discussion about the merits of various schools of philosophy, praising Plato along the way. Finally, he describes the differing views of demons along with their attributes. Augustine refuses to argue over semantics. Here are some other interesting thoughts from Book 2:
Augustine assumes the immortality of the soul
"God is not the soul of all things, but the maker of all souls"
Polytheism evolved from Monotheism, not the reverse
His amillennialism (present kingdom) begins to come through
So much prophecy is already fulfilled, assuring the yet future