A One-Round Living Greyhawk Bandit Kingdoms Regional Interactive
From the introduction:
"Who would believe a weapon could force people to attack the person who held it and why would such an abomination ever be forged? The storyteller lost all credibility when he swore that those who fell while wielding it vanished in a flash of white light. But somewhere deep his tale stirred a memory..."
A Bandit Kingdoms regional adventure for [character levels] 2 - 16, and Part 5 of the Bender Series.