Oxford Copper

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

A young police constable is shot while walking through an Oxford park. A wealthy woman hires the Milestone Agency to find a valuable missing ring. The two events would seem to have absolutely nothing in common, but that's before Theo and Rose discover a unexpected  connection, one that could have fatal consequences.

'Oxford Copper' is the ninth novel in the Milestone Agency Victorian Mystery series.