Osman is an NPC who can be found in Al Kharid, just outside the palace. He plays a significant role in the quests Prince Ali Rescue and Contact!. He also makes an appearance in the first cutscene in the Recipe for Disaster quest.
Replacement Keris daggers can be bought for 20,000 coins after finishing Contact!, if a player lost the one they initially picked up at the end of the quest. If the player did not retrieve the dagger on the quest, Osman will supply it free of charge.