Just played some of Interlude 1 last night, and found something odd. In the Quest Guide, it says there are three open groups of monsters, and tells me where to place 1 & 2, but says not to place 3. In the other quests this happens, but it always has a situation where you would place that "hidden" group. But it never tells me when or where to place group 3 in the Interlude. I thought maybe I just reinforced them on the board?