Rift to the Plane of Earth

Publisher's blurb:

A rift to the plane of earth has been opened, descending down into misty darkness. Green crystals spread from that chasm outwards, contaminating the surrounding area as the plane of earth bleeds into the material realm.
The glowing emerald crystals coat the crumbling stone outcrops in the area, more forming every minute as the planes continue to merge unnaturally.
Directly surrounding the entrance to the plane of earth is a circle of engraved stone pillars, reflecting the lurid glow of the chasm. Beyond, a dying forest looms.