Upon completion of the Noblest of Men, and a Woman Stranger Mission - which sees Arthur Morgan shoot Jim 'Boy' Calloway - the player will be presented with a custom Schofield revolver, with 'Canis Canem Edit' carved on its barrel.
Sound familiar? Well, it should, because it's the tagline for 2006's Bully, a title many expect Rockstar to expand on in the coming years, given reports that the studio are actively pursuing a sequel.
It's far from confirmation that it's happening of course, but the message - when taken together with the 'Endless Summer' trophy - certainly hints that Bully 2 is on the way. Here's hoping that actually is the case, even if it is a little soon to contemplate what's next, with Red Dead Online still to come.