''Dark Is the Clue'' by E. R. Punshon (d. 1956), public domain. The story follows Commander Bobby Owen of Scotland Yard as a routine police investigation quickly spirals into a complex, slow-burning mystery. Bobby is sent to visit a man named Willoughby Wynne regarding a local gang of thieves. The plot beautifully weaves together two separate criminal strands.
Underworld gossip suggests that cash stolen during an old Post Office robbery is buried somewhere in a local copse. A fresh web of secrecy and subterfuge takes root in the neighborhood, forcing Bobby Owen to use his superior sleuthing skills alongside the local investigator, Superintendent Kimms, to bridge the past and present crimes.
