Question: summary of the story the adventure of the blue carbuncle

title: The Adventure of the Blue Carbuncle
text: ( hide ) This article has multiple issues . Please help improve it or discuss these issues on the talk page . ( Learn how and when to remove these template messages ) This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . ( May 2013 ) ( Learn how and when to remove this template message ) This article consists almost entirely of a plot summary . It should be expanded to provide more balanced coverage that includes real - world context . Please edit the article to focus on discussing the work rather than merely reiterating the plot . ( December 2011 ) ( Learn how and when to remove this template message ) ( Learn how and when to remove this template message )