Author Terry Segan talks about her second novel, Precious Treasure, a paranormal mystery with a spirit from the Civil War.  (Her first book, Photographs in Time, involved time travel.) Terry enjoyed researching the Civil War for her novel. Here's a tidbit about what she discovered: "In Precious Treasure, the most interesting part to write was the Civil War journal of the young Confederate soldier. It took quite a bit of research to understand the life of…