“Lies Sleeping” is the 7th book in the “Rivers of London” series. The book “Lies Sleeping” is written by Ben Aaronovitch. The story is about Peter Grant, he is a detective and apprentice wizard, who is on a mission to bring the Faceless Man, a criminal wanted for multiple crimes, to justice. In the story, the Faceless Man has a long-term plan that could bring London to its knees. To save the city, Peter will need help from his former best friend Leslie May, who betrayed him.