Fate of Istus[1] is a multipart adventure for the Dungeons & Dragons roleplaying game, taking place in the World of Greyhawk campaign setting.

The module is designed for characters of any class or level, and was published as an in-game vehicle to explain the transition from the game's first to second edition.

[3] A deadly plague has stricken civilization; the players suspect this is a sinister test of some sort and venture out to stop it.

WG8 Fate of Istus was written by Nigel Findley, Dan Salas, Stephen Inniss, and Robert J. Kuntz, with a cover by Daniel Horne and interior illustrations by Karl Waller, and was published by TSR in 1989 as a 128-page book.

[4] Authors: Nigel Findley, Dan Salas, Stephen Inniss, Robert J. Kuntz Coordinators: Bruce Heard, Karen S. Broomgarden Editing: Kim Mohan Typography: Betty Elmore Cartography: Diesel Cover Art: Daniel Horne Interior Art: Karl Waller Distributed to the book trade in the United States by Random House, Inc., and in Canada by Random House of Canada, Ltd.