The Old Man in the Corner: The Teahouse Detective: Volume 1 by Baroness Orczy

She has a favorite table at the restaurant.  It has a magnificent view and is in the corner so no one bothers her.  Then an old man comes and joins her table  She finds him to be an annoyance until he begins talking to her about crimes.  He knows all the big cases and talks about those never solved and reasons out the solutions.  He even points out the ones solved incorrectly.  He tries to get her to solve them but she doesn't see what he does.

Pushkin Vertigo (#1)and Edelweiss allowed me to read this book for review (Thank you).  It will be published June 11th.

As the stories continue, she begins to pick up on the nuances in the stories that he sees.  When he tells his last story, she turns the tables on him, solving the crime.  It's a very ironic ending.

I found the tales fun to read and it was fascinating to watch his mind work.  He reminds me of Sherlock Holmes.  This was a good read.