So I have always been playing, if you draw an encounter card and it is a objective with the keyword word "guarded", you draw a 2nd encounter card to place on top of it.. if THAT card is also a objective card with "guarded" you place it next to the original objective card in the staging area and now you draw a new encounter card and place it on the 1st objective card, as the guard then draw a 2nd encounter card and place it on the 2nd objective card. So you end up with 2 objective cards with a guard on each in the staging area.
So that is how I play, but I was playing a multiplayer with a mate and he had a different way to play this but I couldn't find a rule to contradict him...
He would do it like this...
you draw and encounter card, it is an objective card with "guarded" so you now have to draw a new encounter card, this is also an objective card, it is placed ON the original objective as the "guard"/"condition" you need to pass to claim the original objective card. You now draw a new encounter card and place that on the 2nd objective as its guard. So... you end up with a stack of three cards, objective,objective,guard. Now you need to clear the guard, then claim the objective, and that now, clears it so you can get the next objective.,.. So in HFG for example you can only claim objectives on a successful quest, so this makes you have to quest twice, once to claim the unguarded 2nd objective (after the guard is removed), and that then frees the 2nd objective to be claimed next quest phase.
I still think my way is correct, but as I said.. is there a rule that addresses this? Cause we couldn't find it last night.