I can start this quest by speaking to Duke Horacio
On the second floor of the Lumbridge Castle

Duke Horacio 
 - Greetings. Welcome to my castle

Choice: 
       Have you any quests for me?
       Where can i find money?
Player:
Have any quests for me?

Duke Horacio - Well, it's not really a quest but i recently discovered
this strange talisman. It seems to be mystical and i have never
seen anything like it before. Would you take it to the head wizard at
the Wizards' Tower for me? It's just south west of here and should
not take you very long at all. I would be awfully grateful.

Choice : 
        Sure, no problem.
        Not right now.
Player: Sure no problem 
 
Duke Horacio - Thank you very much, stranger. I am sure the head wizard
will reward you for suck an interesting find.
 
The Duke hands you an air talisman.
 
Sedridor - Welcome adventurer, to the world renowned Wizards' Tower. How may i help you? 

Choice - Nothing thanks, I'm just looking around.
         What are you doing down here?
         I'm looking for the head wizard.
Player: I'm looking for the head wizard.

Sedridor - Oh, you are, are you? And just why would you be doing that?
Player: The Duck of Lumbridge sent me to find him. I have this
Weird talisman he found. He said the head wizard would be very interested in it.
Sedridor - Did he now? HmmmMMMMMmmmmm. Well that IS interesting. Hand it over then adventurer, Let me see what all the hubbub about it is. Just some amulet i'll wager

Choice - Ok, here you are.
         No, I'll only give it to the head wizard.	
Player: Ok, here you are
You hand the talisman to the wizard

Sedridor - Wow! This is... incredible! Th-this talisman you brought me...! it is the last piece of the puzzle, I think! Fianlly! The legacy of our ancestors.... it will return to us once more!
 
I need time to study this, Player. Can you please do me this tast while i study this talisman you hvave brought me? In the mighty town of Varrock,

Which is located North East of here, there is a certain shop that sells magical runes. I have in this package all of the research I have done relating to the Rune Stones, and require somebody to take them to the shopkeeper so that he may share my research and offer me his insights. Do this thing for me, and bring back what he gives you, and if my suspicions are correct, I will let you into the knowledge of one of the greatest secrets this world has ever known! A secret so powerful that it destroyed the original Wizards' Tower all of those centuries ago! My research, Combined with mysteriours talisman... I cannot beliveve the answer to the mysteries is so close now! Do this thing for me Player. Be rewarded in a way you can never imagine.