This transcription follows the text of the edition published by HarperCollins in 2016, which is based on the original 1921 edition published by W. Collins Sons & Co. Ltd. The following alterations have been made to correct what are believed to be unambiguous errors in the text: * Seven missing quotation marks have been restored. * Three sentences terminated with a comma have been changed to end with a period. * Six further invalid commas have been deleted. * The word “Franklyins” has been corrected to “Franklyns” (Ch. III). * The words “un substantiated” have been corrected to “unsubstantiated” (Ch. V). * The phrase “fled him forward” has been corrected to “led him forward” (Ch. VI). * The word “aerodome” has been corrected to “aerodrome” (Ch. XII). * The word “Anstin” has been corrected to “Austin” (Ch. XV).