I'm fairly new to this game and just want a rules clarification. In the shadow of the past adventure from the black riders saga the game starts with a nazgul with the hide effect in the staging area. Am I required to make this check at the start of the game? Also, when subsequent quest cards are revealed it instructs you to 'add' a nazgul to the staging area. Again am I required to make this hide check for the new nazgul? I read somewhere that because you are 'adding' it to the staging area it isn't being revealed so you don't have to make the hide check...this didn't sound right to me.
Apologies if this question has already been asked but I have searched and cant find a concrete answer.