Chronicles of Narnia or JRR Tolken's Lord of the Rings could be considered works of apologetics. It was interesting hearing her talk about how poetry and fiction can be used to communicate truth. She spoke about how important it is for us to remember that imagination is important and just because something can't be weighed, counted, or measured does not mean that it's useless. Follow the link to hear the interview.
Apologist Interview: Holly Ordway on Literary Apologetics - Apologetics 315