A large structure lies ahead. As you draw nearer you see an old stone wall across the clearing. In its center an iron gate, skewed, rusty. And besides the gate two towers, one nearly destroyed, the other still standing. Was this what this battle was about? To invade the now forgotten realm beyond the gate?
You follow the old road a bit further. After some more abandoned war machinery you stumble upon something. As you look down you see a skull in a rusted helmet. You gaze further ahead and see an old battlefield, spiked over and over with arrows. And beneath the arrows you see corpses. The mortal remains of soldiers that died long ago, embedded into the grass, overgrown and withering.
The old farmer tells you, that there is a secret hidden deep in the woods. After searching the woods for hours you find a clearing. You move forward, cautiously, on guard. The first thing you see is an old road, overgrown and not used for decades. Followed by old, decrepit weaponry, rotting away on the gras. What could have happened here?