The ominous sounding Skittering Dark[37, 18] is the name for an abandoned mine and the surrounding forest in northwest Silverpine Forest. It is so named for the numerous spiders which inhabit the mine and its entrance. Among the spiders of the mine is one particularly nasty matriarch called Krethis Shadowspinner.
The spiders of the Skittering Dark are valued for their Skittering Blood, which the Forsaken Apothecaries seek for their concoctions. Studies have proven that the blood, combined with a grizzled bear heart, forms a deadly elixir, possibly trying to create a new plague.
This subzone can be discovered at 35, 19 for the Explore Silverpine Forest achievement.