From the front page of the PDF:
A One-Round Dungeons & Dragons® Living Greyhawk
Iuz’s Border States Metaregional Adventure
You have received a vision requesting your aid. Gildor Arcanix has asked that you go and defend a dreaming oracle in her lair. Let nothing awake her from her dreams, because her dreams are our only hope. She must be defended at all cost! A one-round Iuz’s Border States Metaregional adventure set in Howling Hills for APLs 4-14.
Resources for this adventure include Complete Arcane [Richard Baker], Complete Mage [Skip Williams, Penny Williams, Ari Marnell, Kolja Raven Liquette], Complete Warrior [Andy Collins, David Noonan, Ed Stark], The Magic Item Compendium [Andy Collins, Eytan Bernstein, Frank Brunner, Owens K.C. Stephens, John Snead], The Monster Manual IV [WoTC], The Spell Compendium [Matthew Sernet, Jeff Grubb, Mike Mc Artor].