Tessa Lorant Warburg lives in England with her elder son, his Thai wife and their three lively children. Originally a mathematician, Tessa began her working life as a computer programmer, then married an author who encouraged her to start writing. She wrote a series of unexpectedly popular books about her hobby of knitting, and patented two knitting aids: The Golden Gauge, a device for isolating long knitting pattern lines, and The Silver Gauge, used for substituting yarns with others of the same thickness. She is featured as one of a handful of knitters in Richard Rutt's seminal A HISTORY OF HAND KNITTING. After her husband died of cancer Tessa wrote, at his request, her first non-knitting book, A VOICE AT TWILIGHT. This takes a look, not always solemn, at the experience of living - and dying - with the Big C. Tessa was awarded the Oddfellows Social Concern Award for this book, and the prize was presented at the House of Commons. As family members kept telling her how like her husband the book sounded she thought she might be able to use that skill to write fiction. Tessa has now published six suspense novels and a family saga - a trilogy - set in North Germany and based on her mother's family. And she's busy writing more books, both fiction and non-fiction.