Ask him OSRS Items where you can find a symbol and he'll let you know that the symbol maker is at the 2nd floor of the palace (that is below your floor.) You'll be allowed out and the Mogre will direct you to the symbol maker, not allowing you to move. You will talk to the Yarg, the emblem maker and he will ask you what symbol you want. You Will Have the Ability to choose between Lannar: The Mogres of Weaponry and the Color Yellow, Lu'tog: The Mogres of Poison, Combat and the Color Red, Narran: The Mogres of Peace, Agility along with the color Blue and Yun'lar: The Mogres of Defence and the Color Green.
He'll then make you a symbol of the area you choose. Wear the symbol and you'll have the ability to pass into your area by the palace. To identify what region you belong to, just opt for the doorway of the color. If you aren't sporting the emblem or you are sporting the emblem but you do not belong to the region, the guards will stop you. You cannot un-equip your symbol while in your region. Your symbol will replace whatever is in your necklace slot.
Quest complete! Rewards: 7,000 magic XP, 12,000 power and assault XP and access to Mogrin by speaking to Captain Murk to sail you there! (Should you lose your emblem, talk to a guard outside of Mogrin to receive one or even if you lose your orb, speak to Tarren to get it back)
Your region will have more of whatever your area believes in, so if you're at the Yun'lar area, it's going to have more advanced defence and have more defenses or armor to purchase from the mogre dealers and will also have mogre armor, in Lannar you will have mogre weapons and have more weapons to buy from dealers, Lu'tog will possess mogre poison (a poison that could hit up to 13) and more poisoned weapons and Narran is going to have an under-water agility course and distinctive mogre suits that will raise your luck in Buy RuneScape 2007 Gold agility (you won't fail an obstruction as much)