13-year-old Andy lives in a seedy boarding house in London that has been run by the family for generations - in fact since Jack the Ripper, who murdered his last victim in Room 4. Andy befriends Massimo who is looking for new clues to Jack the Ripper's unsolved crimes, and he becomes involved in an astonishing and bloodcurdling adventure!---------------------------------------------------------------------------------------------------------------My Grandfather Jack the Ripper by Claudio Apone will have you full of suspense. A gifted child in present day London named Andy discovers that one of the Jack the Ripper cases happened in a room of the boardinghouse he lives in. Using his powers to tell the past, Andy, an Italian “researcher” named Massimo, and Andy’s best friend Lucy team up to figure out who is the real Jack the Ripper. With Massimo’s help, Andy travels back into the past and finds out who is the unknown murderer. I thought this book was great and it would be perfect for people ages 15 and older.