A McKettrick Christmas by Linda Lael Miller

Lizzie McKettrick is returning to Indian Rock with Whitley Carson who she suspects will ask her to marry him. When the train is assaulted by heavy snows in an avalanche, Whitley's true colors show and Lizzie finds herself drawn to young Doctor Morgan Shane. With the engineer and the conductor killed in the wreck, some of the passengers hurt or sick, Lizzie and Dr Shane step up to the task of caring for them. Praying that the McKettrick clan is on the way to the rescue, Lizzie experiences a miracle of Christmas. Heart-warming story of family love and caring.