A One-Round Living Greyhawk Keoland Regional Adventure
From the introduction:
Four Keys. Four Tribes. Four Seasons. Four Turns. Time has run out for Reynard Yargrove. Not even the wishes of an archmage are enough to remove the taint of the Far Realms from the archdruidess, and no creature outside of Nature can close the portals. A trip to Obad-Hai's realm might be just the remedy.
A Keoland Regional planar-hopping Dreadwood adventure for APLS 6-12 in the Forests series.