Cate knew she had seen those jewels before. As her eyes scan the newspaper article from 1925, she is shocked to read about the theft of two priceless necklaces from her family's home. When Cate recognizes one of the stolen necklaces from when she traveled back in time to the year 1856 to solve a murder mystery, Cate knows there's only one thing left for her to do. Despite the hectic holiday season approaching, complete with two grand holiday events, Cate must travel to 1925 and unravel the mystery surrounding the jewelry theft. However, things take an unexpected turn when she arrives. As Cate discovers more unanswered questions, she starts to wonder if there's a piece to the puzzle she has yet to uncover. While Cate and the estate manager, Jack, try to unravel the puzzle in the past, another mystery brews in the present for Cate. Strange and eerie nightmares centered around a bookcase in Dunhaven Castle's library disrupt Cate's sleep, rattling her mind even during her waking hours. She wonders if these are connected to the jewelry theft or if something darker lurks in Dunhaven's halls. Can Cate solve the mysterious theft of her family's jewelry? Will the bookcase hold the secrets to the past? If it does, will Cate be able to decipher the clues on its shelves? Or is there something more sinister at work in Dunhaven Castle?