Another book for Dad. This is about a magician, rather down on his luck. At one engagement he ends up with an envelope he shouldn't have, in order to prevent it from falling into the wrong hands. He sends the envelope to a safe place before heading off to his next engagement, a stint in Germany. While there he learns that the person he was keeping the envelope for died later that night. Unsurprisingly, the person who originally had the envelope is now looking for him. On top of all that, he thinks he's responsible for the murder of an unnamed person
The book is following him about Glasgow, intercut with flashbacks to his time in London (where he got the envelope) and Germany. A bullet trick is a trick performed by magicians that I understand is rather standard. This is an interesting book. I probably wouldn't have chosen it for myself, but it's worth reading because it's a departure from the usual types of murder mysteries.