You must be level 150 to complete the quest You cannot repeat the quest until you have completed the quest for the colour dress

Head behind the Temple of Avalon and find Kelly. Tell her liche, MakrshPTangh then follow the keywords until she swaps you the dress.

List of items to make the dress:

• You must be level 150
• You must have 1 Cloak of the Archer
• You must have 1 Flowing Black Robe
• You must have 1 woodland robe
• You must have 1 Robe of Purified Souls
• You must have 1 Mantle of Death (Yellow)
• You must have 1 Garb of the Dead (green)
• You must have 1 Hell Robe
• You must have 1 Conjurer's Mantle
• You must have 1 Shaman's Mantle (Gray)
• You must have 1 Archmage Robe (Mauve)
• You must have 1 Nature's Garb (orange)
• You must have 1 Renewal Cloak
• You must have 1 High Priest Robe (black)
• You must have 3 jafo's hearts
• You must have 2 bloodstone necklace
• You must have 1 Ring of the Forester
• You must have 1 Jade Ring of Sorcery
• You must have 10 Sapphire Bracelets
• You must have 7 Ring of Accuracy
• You must have 1 Bravery Bone
• You must have 5,000,000 gold
• You must have the original Robe (without boost) dropped on the lich

Reward

 Immunity Robe (with boost)   
 

Head behind the Temple of Avalon and find Kelly. Tell him colors so at the end of this dialogue you will have the choice of colors for this pretty dress.

List of items to make the dress:

• 1 Warlock Ring
• 5,000,000 golds
• 1 Immunity Robe (with boost)

Reward

 Immunity Robe colored (with boost)