Early Investigations of Lyle Thorne

Five more mysteries from the Golden Age of Detection.
Lyle Thorne investigates five cases spanning the years 1876 to 1889.
In Thorne's first ever investigation, his father is accused of murder by a dead man...
Having been told to meet his step-father at 1 p.m., a young boy sets off from home at 12.45 p.m. and is never seen alive again...
Two twins plan and perfectly execute a murder...
A baby disappears from the nursery of the London home of the Duke and Duchess of Albermarle...
Thorne's investigations put a name to Jack the Ripper...