Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General Making an NPC follow the party?

Actually you don't fill in the _NPCGUID with a specific value in this case. The Query DialogGetInvolvedNPC() finds the value for you and stores it in the variable _NPCGUID, which gets used later in the CharacterSetFollowCharacter(). Let Osiris do the work for you here. So try the code as is, only replaceing the "DialogName" with the real dialog file.