After reading PARIAH, Detective Callum Doyle became one of my favourite characters from all the books I read last year. Following on from that, THE HELPER is one of those books that you dive into and feel excited about welcoming old friends back. A killer is letting Doyle know who will be murdered next - can Doyle work out the clues and if not, whose death will be on his conscience? Somehow he always seems to land himself in trouble through no fault of his own. The plot is full of clues within clues, mistakes made by killer and detective, and I enjoyed working it all out. The book is so authentic and David writes with humour but can turn on the emotion in a matter of seconds. THE HELPER is a fast paced book, twisting and turning at every chapter, with a very clever ending. Bring on number three.