"There were two reasons why the terrible and, in many ways, incredible Garden murder case—which took place in the early spring following the spectacular Casino murder case —was so designated. In the first place, the scene of this tragedy was...
The Judas Window by John Dickson Carr (writing as Carter Dickson).
One of the five best locked room mysteries, as selected by 14 established mystery authors and critics (All But Impossible!, 1981. ed. E. Hoch).
The Case:...