Writing a novel about Hildegard von Bingen, the 12th century visionary abbess and polymath, was a daunting process. I felt intimidated to be writing about such a religious figure. The last thing I wanted to do was churn out preachy inspirational fiction which would be both unconvincing and hypocritical coming from me, a lapsed Catholic who falls under the "spiritual but not religious" umbrella. How could I make Hildegard's story seem fresh and relevant to a modern secular audience?