I am in a serious art-rut

I haven't done anything for weeks. All I can manage is little doodles in little books made of little squiggles of little people on the train...
My summer project for my degree is on fairy tales. I chose Snow White and have to create musings and doodles and workbooks on it, and make 3 final images to illustrate the story. I really am enjoying the research side (all I can muster is hours spent surfing the internet, reading intersting sites) but as of yet have not put pen to paper.
I am finding the subject matter interesting and inspiring; but am not actually inspired to do any drawings. I can't visualise how it all looks and I can't see how I want it to look. Oh dear oh dear oh dear
