The day in 2004 when the radiologist told me I had invasive cancer, I walked down the hospital corridor looking for a phone to call my husband, and I could almost see the fear coming toward me like a big, black shadow.

My mother's family were full-on Irish Catholics - faith in an elaborate old fashioned, highly conservative and madly baroque style. I sort of fell out of the tribe over women's rights and social justice issues when I was just 13 years old.

If somebody from the past doesn't rise up from the grave and start talking to me, I haven't got a book. I have to hear that voice, the voice of the narrator. How she sounds will tell me who she is, and who she is will tell me how she will act - and that starts the plot in motion.

It is my great good luck the words I use are English words, which means I live in a very old nation of open borders; a rich, deep, multi-layered, promiscuous universe, infused with Latin, German, French, Greek, Arabic and countless other tongues.