I already submitted a bug report on this, and was wondering if anyone experienced and or has a fix to this problem. I have not been able to play the minigame even one time, as whenever I speak to Brian O'Richard and request to play, he says he'll gladly give me another mystical jewel when I did not have one to begin with. After the dialogue is finished, there is no mystical jewel in my inventory. Some things to know: I have 52 thieving and 50 agility, and my inventory was empty when I requested a mystical jewel. I have logged out, restarted the client, and switched worlds with no luck. The only thing that I believed to have triggered this bug was that I spoke to Brian O'Richard before I had the required skill level, and in that dialogue he told me I was not ready for whatever he had to offer (to enter the rogue's den). Anything would help!