Whispers in the Sand, Barbara Erksine

The gripping suspense story is set in richly mysterious Egypt, where past and present elide. Recently divorced, Anna Coburn decides to cheer herself up by retracing a journey her great-grandmother, Louisa, a renowned artist, made in the mid-nineteenth century -- a Nile cruise from Luxor to the Valley of the Kings.
Anna carries with her two of Louisa's possessions -- an ancient Egyptian scent bottle, and an illustrated diary of the original cruise that has lain unread for a hundred years. As she follows in Louisa's footsteps, Anna discovers in the diary a wonderful love story from the Victorian past, and the chilling, more distant secret of the little glass bottle.
Meanwhile, two men from the tour party are showing a disturbing interest in these mementos, and developing an unfriendly rivalry for Anna's attention. And, most frightening of all, Anna finds herself the victim of a haunting, a spectral presence that grows in strength and threat as the dramatic stories from three different eras intertwine in a terrifying climax.

I found this book a joy to read, although I did find it hard when it kept switching between Louisa and Anna. I do hope that there is a sequel as it was left too open for my liking!

If anyone would like this, let me know!