An artist's body is found at the harbour of the fictional town of Mortcliff and the amateur sleuths guess whether it was the businessman, the admirer, or someone else.

Three amateur sleuths attempt to catch the killer after an inventor's body is found in his own workshop.

Three amateur sleuths attempt to catch the killer when another juror's body turns up at the Bay Cliffs; they suspect it to be either the brother, the boyfriend or another juror.

After a star lawn bowler dies on the bowling green, three detectives try to piece together who had the means, motive and opportunity.

Three amateur sleuths attempt to catch the killer when the body of a local ranger is found in the woods.

The amateur sleuths investigate the case when a member of a notorious gang of criminals is found dead.