Ghostwalk: don't look behind you!

I know, I know, this is the wrong month for ghost stories, but this is the book selected by the teacher's book club for February. To appease those who insist on love stories for Valentine's Day, this is also a love story -- but not your ordinary kind. Writer Lydia Brooke agrees to complete the unfinished book after her ex-lover's mother dies unexpectedly. She moves into his mother Elizabeth's house and is soon enmeshed in research on the life and career of Sir Isaac Newton, the subject of the unfinished book. Sure enough, Lydia and the married Cameron soon resume their affair, but they both have many secrets. Cameron, a scientist who develops pharmaceuticals in a lab where they use rats for their trial experiments, is always in danger from an animal rights terrorist group -- but he doesn't tell Lydia about the true purpose of the drugs he's developing, nor of his involvement with a world-wide group pulling the strings. Lydia, conducting research on Trinity at Cambridge University in the 17th century, doesn't share information about the mysterious lights that appear in his mother's house, the odd disappearances, the man in a red cape she keeps seeing just out of the corner of her eye, nor the woman who approaches her to channel the spirits of contemporaries of Newton who died in unexplained ways.
The story takes meandering paths and leads Lydia into dangers she can neither foresee nor avoid. This is a book full of historical facts and scientific explanations -- but always with that surreal twist. Do you believe? This books makes it seem so possible that by the end you're not sure which explanation to believe -- the scientific or the supernatural.
I liked it okay, but it wasn't a totally-awesome thriller.

I'll give it three stars out of four.