During the day, a DC 20 Listen check is suffi cient to hear the sounds of past battles; on ordinary nights the DC drops to 15. On the night of the full moon, hearing the battle is automatic—it’s a real battle at that point, not just the distant echo of past clashes.
When the moon is full, characters can see clearly for 60 feet, and they can peer through concealing shadows for another 60 feet; characters with lowlight vision can see 120 feet, plus another 120 feet in shadows. The prevailing Aundair weather applies in the Crying Fields on full-moon nights, although the undead soldiers largely ignore weather. The magical transformation that turns the Crying Fields into an undead battlefield suffuses the entire area with a strong aura of necromancy.
The same necromantic transformation that creates undead soldiers also recreates a hodgepodge of walls, trenches, and the detritus of war. But because the historical battles that led to the creation of the Crying Fields were fought decades apart and under different conditions, the arrangement of the fortifications makes no rational sense—it’s just a jumbled mix of five battles overlaid atop one another.