Affair of Lady Westcott's Lost Ruby / The Case of the Unseen Assassin

Meet Inspector Alec MacDonald Mac, to his friends an up-and-coming policeman from Scotland Yard. Unlike Inspector Lestrade, MacDonald is happy to work with Sherlock Holmes, especially when Lady Anne Wescott loses her treasured ruby. And just when that mystery seems resolved, Lady Wescott goes missing herself! Can Holmes and Mr. Mac solve the disappearance before Lady Wescott vanishes forever? In the second case, Mr. Mac and Holmes are stymied by a rash of murders. Society members are being shot down on the streets of London. There must be a connection between these seemingly random murders, but what can it be? A window washer, a banker, a newly elected MP... Holmes, Watson, and Mr. Mac must find the connection before more innocent lives are lost.