It’s almost impossible not to spoil this one by reviewing, but I’ll say that when I was watching the Phantom of the Opera, I was hoping for non-mystical resolution.

This book is an exemplar detective story, Mrs. Plinge could have just as well be written by Dame Christie and screenplayed by Mr. Horowitz.

Maximum points for detective story and half-a-point extra for, again, keen philosophy and cinematic writing.