He also wrote the adventure Beyond the Crystal Cave ( 1983 ) with Tom Kirby and Graeme Morris .
Dave Browne and Don Turnbull wrote the early TSR UK adventures U1 - U3 ( 1981 - 1983 ) , which added to the Greyhawk setting .
Dave Browne also wrote the adventure Beyond the Crystal Cave ( 1983 ) with Tom Kirby and Graeme Morris .
Dave Browne and Don Turnbull wrote the early TSR UK adventures U1 - U3 ( 1981 - 1983 ) , which added to the Greyhawk setting .