Alfie saw the body just before all hell broke loose in Trafalgar Square.
It was after midnight and the streets were filled with a choking yellow fog, but there was no mistaking the fact that the man on the ground was dead.
There's an explosive opening to the fifth London Murder Mystery. Once again Alfie Sykes and his gang are plunged into a thrilling and dangerous mystery set on and this time below the dark streets of Victorian London - their adventure takes them into London's sewers and underground rivers.
The Montgomery Murder won the East Sussex Children's Book Award 2010 and the Hillingdon Secondary Schools Book Award 2011. It was also shortlisted for the Stockton Children's Book of the Year 2011, and the Lancashire School Libraries Fantastic Book Award 2011. Book 6 in the series, Death in the Devil's Den, will be published in July 2012.