La escalera de los gritos Jonathan Stroud Author

Something strange is happening in London: ghosts, spirits, apparitions, and specters are all over the city and they are not friendly. Only the young have the necessary psychic abilities to see these dangerous supernatural beings and get rid of them. The daring Lucy Carlyle teams up with Anthony Lockwood. Together with their friend George, they are forced to investigate the most famous and terrifying haunted houses in England. Will they survive?