FTP, name this novel following Milly Theale written by Henry James.
One character in this work receives a letter from Venice, recognizes the handwriting, and burns it without opening it.  That letter is written by a character whose death is announced by telegram days earlier.  After arriving in England accompanied by Susan Shepherd, the protagonist visits Sir Luke Strett, who informs her that she has only a matter of months to live.  One character learns that the protagonist rejected Lord Mark in the belief of his insincerity through Mrs. Stringham.  In the end, after unsuccessfully plotting to marry the protagonist for her money and use it to remarry once she died, Merton Densher refuses to marry Kate Croy with the money the protagonist willingly leaves them.  FTP, name this novel following Milly Theale written by Henry James.
One character in this work receives a letter from Venice, recognizes the handwriting, and burns it without opening it.  
The Wings of the Dove