One morning a prominent former cabinet minister mysteriously falls to his death in front of a Northern Line train at Mornington Crescent station. An open and shut case? Sadly for Tracy, the Commander and their London Transport Division of the Security Service, nothing is quite so simple as an old enemy returns and sinister dark agents once again work their magic.
Amidst the ongoing investigation, our heroes have to defend against unseen enemies, conspiracies and a huge protest and riot that threatens to tear the City of London apart from around them.
But is everyone what they seem?
The footsteps of hard soled expensive shoes echoed around the warm dry tube platform of Mornington Crescent Underground Station. The blue and cream tiled walls, still shiny following a recent refurbishment, reflected the light afforded by the neon...