Meet Eric the Skull, the mascot for The Detection Club! According to wikipedia:

 

The Detection Club was formed in 1930 by a group of British mystery writers, including Agatha Christie, Dorothy L. Sayers, Ronald Knox, Freeman Wills Crofts, Arthur Morrison, Hugh Walpole, John Rhode, Jessie Rickard, Baroness Emma Orczy, R. Austin Freeman, G. D. H. Cole, Margaret Cole, E. C. Bentley, Henry Wade, and H. C. Bailey. Anthony Berkeley was instrumental in setting up the club, and the first president was G. K. Chesterton. There was a fanciful initiation ritual with an oath probably written by either Chesterton or Sayers, and the club held regular dinner meetings in London.

 

The Detection Club on Booklikes is a group where we will discuss and read crime classics for fun! Join the group here!

 

Take the oath:

 

Do you promise that your detectives shall well and truly detect the crimes presented to them using those wits which it may please you to bestow upon them and not placing reliance on nor making use of Divine Revelation, Feminine Intuition, Mumbo Jumbo, Jiggery-Pokery, Coincidence, or Act of God?