The first officially sanctioned new Sexton Blake novel in nearly half a decade!
Commissioned by rogue antiquarian Mathew Cardolak, a criminal trio known as the Three Musketeers sets out to steal a valuable artefact from the most secure vault in the British Empire, a chamber hidden deep beneath an Army base inside the Rock of Gibraltar. Sexton Blake and his trusty sidekick face peril after peril in their quest to foil the plot!