LittleFuzzy
First Post
That fight started off really poorly outside in the open, so the party retreated into the goblin lair. As far as they knew, it was now completely empty except for the hobgoblin deathmaster (and his zombies). They retreat around a corner into a room that looks fairly defendable, and while the dragon spends a couple rounds squeezing through the tight tunnels to get to them, they notice a secret door. Now, there's precisely one secret door in the entire lair, and there's one Big Bad Guy left. You do the math. But the party says they're going to open the door and hide inside!
::nods:: This is the most common cause for running into two encounters in my experience, aside from the DM just designing a two-encounter fight. The characters are the ones doing the running, for whatever reason, and they're running in a bad direction.