Speaking Daggers

There's a killer on the Loose on the streets of Swansea. And he is leaving clues. Detective Inspector Gus Reid and his tema have a gruesome murder on their hands but no suspects and no obvious motive. All they have to go on is a series of literary quotations that appear like graffiti on walls throughout the city.
Can Gus's daughter, an expert in Renaisance literature, help solve the crime? Or will she become the next victim?
The Killer believes he is much cleverer than the 'police detectives'. But is he too clever for his own good?