There is a small intriguing book by Bezalel Naor available from OU (believe it or not) called LIGHTS OF PROPHECY. The book descibes the relationship and balance between true prophecy and avodah zarah. It's amazing!
I have a small anti-evolution book published by NCSY, so I suppose such a thing is possible!
When I find the exact citation from Igros I will post it here.