Biggers, Earl Derr: Behind That Curtain. v1. 7 Feb 2013
 

Earl Derr Biggers (August 24, 1884 – April 5, 1933) was an American novelist and playwright. He is remembered primarily for adaptations of his novels, especially those featuring the Chinese-American detective Charlie Chan.

Excerpt
"Sir Frederic, who is stopping over for two weeks in San Francisco during the course of a trip around the world, is qualified to give an expert opinion. For nearly seventeen years he acted as Deputy-Commissioner at the head of the most famous detective organization in existence, and though he has now retired, his interest in crime detection is as keen as ever. Sir Frederic is a big man, with a kindly twinkle in his gray eyes, but occasionally those eyes have a steely look that made this reporter nervous. If we had killed the old Earl of Featherstonehaugh on his rare Persian rug, we would not care to have Sir Frederic on our trail. For the great detective is that type of Scotchman who is a stranger to defeat. He would never abandon the scent.