Excerpt here

Never read Wendy Markam, is this suppost to be chick lit/romantic?
If Only In My Dreams by Wendy Markham
Release Date: December 2006

From USA Today bestselling author Wendy Markham comes a Christmas love story starring a woman whose dreams are about to come true-sixty years too soon…

Actress Clara McCallum isn’t looking forward to spending Christmas alone in New York-especially since she’s still reeling after a diagnosis of breast cancer. But she has to be on location in the city for her next big movie. She’s playing a woman in love with Jed Landry-an American soldier who’ doomed to die at Pearl Harbor…

Imagine Clara’s astonishment when she steps off an old-fashioned locomotive from the set and finds herself whisked back in time-and into the arms of the real-life Jed. She’s convinced it’s some sort of hallucination brought on by her diagnosis. But before long she finds herself swept away by this handsome soldier, and wondering if maybe her plunge into the past could change the course of the future-and turn out to be the best Christmas present ever

From her site…

in my alternate identity as chick lit/romantic comedy author Wendy Markham, I recently finished writing IF ONLY IN MY DREAMS, a paranormal Christmas time travel romance coming from Signet this December. Filming a movie based on actual events, actress Clara McCallum plays the imaginary love interest of doomed World War II soldier Jed Landry. Now, unexpectedly faced with a breast cancer diagnosis, Clara finds herself journeying back to the first week of December, 1941, where she meets–and falls in love with–the real Jed Landry. She alone knows Pearl Harbor looms, and that Jed won’t survive the war. Going home to the present will mean saying goodbye to Jed forever. Yet if Clara stays in the past, where Jed’s fate is already sealed and there is no effective treatment for her cancer, she’ll die, too. Faced with an excruciating choice, Clara can only hope for a Christmas miracle.