Okay, first get 27 rune esscence after completing the Rune Mysteries Quest, then go to world 66 and take off all your armour and weapons, store them in the bank, get out the 27 ess and you're off to go. Go to Port Sarim and speak to one of the monks of Entrana, once you're on entrana there will be a crowd of people going in the same direction (no directions needed here) so just follow them until you get to some mysterious ruins. There will be people dressed in red shouting "open" and other people shouting "law me" now I advise that you do not shout law me, or trade someone in red after they have said open, you should just trade one of the crafters in red. Once in the trade screen, offer all the 27 ess and in return you will recieve 27 ess (noted) and 27 law runes. Now get off entrana and head to draynor bank, store the noted ess and withdraw it again so it becomes unnoted. Keep repating this process until you have about 2,000 laws. Now you have 4 options: Sell in world 66 for 250gp each, sell in any other members only world for 300gp each, waste all of them on magic xp, or my personal favourite: sell them in a free to play world for 500-1k each. people who only need 1 law will pay 1k, the others will pay 500gp each. if you sell all 2k laws for 500gp each, you will get a nice amount of 1,000,000gp! This process is known as law running. Freeplayers I suggest you stick to fishing lobsters and swordfish; and cutting yews.