Ghost in the Mirror (Goosebumps Series 2000)

Ghost in the Mirror is the twenty-fifth and final book in the Goosebumps Series 2000 book series. It was published in 2000. Originally, this book was going to be followed by The Incredible Shrinking Fifth Grader. However, the series was canceled before the book could be released, making Ghost in the Mirror the final book in the series.