Outrageous Fortune: A Golden Age Mystery by Patricia Wentworth

Title: Outrageous Fortune
Author: Patricia Wentworth
Publication: Warner, paperback, 1990 (originally published in 1933)
Genre: Mystery
Setting: 20th century England

Description: The Van Berg emeralds have been stolen and Elmer Van Berg shot and left for dead.  A man is unconscious in the hospital muttering about Jimmy Riddell or Randal and green beads, and the hospital helpfully advertises for his family on the radio as Twitter will not created until 2006.