Old boarding school, autumn in foggy London town, ghosts...The atmosphere of this book is awesome. This is a great time of year to read this. 
 Synopsis: Rory, an American girl from Louisiana, has to do her senior year in London because of parent's job. Her boarding school is in the East End, where Jack the Ripper murdered his victims back in 1888. On the day Rory arrives to her new school, there is a Jack the Ripper copy-cat murder; and then there are three more, on the exact days that the Ripper struck. 
 Then Rory sees a creepy guy that no one elso can see. There's something extra creepy and supernatural going on, and Rory becomes the next victim. 
 Johnson has really become a great writer. This was way better than Devilish, which also had the supernatural in it. This is now my favorite book of hers.