In GOOD OMENS, during the first conversation that Crowley and Aziraphale share on the wall to the garden of Eden, Aziraphale calls God's plan "INEFFABLE" Good Omens is a miniseries based on the 1990 novel of the same name by Terry Pratchett and Neil Gaiman. Are you a Terry Pratchett or Neil Gaiman fan? Do you know someone who is - then this pin is a MUST! This word is brought up many times throughout the series! 825x3