Who Killed Sherlock Holmes?

The Great Detective's ghost has walked London's streets for an age, given shape by people's memories. Now someone's put a ceremonial dagger through his chest. But what's the motive? And who – or what – could kill a ghost? When policing London's supernatural underworld, eliminating the impossible is not an option. DI James Quill and his detectives have learnt this the hard way. Gifted with the Sight, they'll pursue a criminal genius – who'll lure them into a Sherlockian maze of clues and evidence. The team also have their own demons to fight. They've been to Hell and back (literally) but now the unit is falling apart . . . Paul Cornell's Who Killed Sherlock Holmes? is the third book in the urban gothic Shadow Police series.