Christine Koning, author of Line of Sight and Variable Stars.  Christina Koning's novel Variable Stars (2011) looks at the life, work and loves of astronomers William Herschel and Caroline Herschel.  Her most recent book is Line of Sight, a detective novel set after the First World War. 

Susan Sellers is author of the novels *Vanessa and Virginia* and *GIven the Choice*. She teaches creative writing and literary studies at the University of St Andrews. http://susansellers.wordpress.com/