Talk to the Squire in the White Knight's Castle, South of the bar in Falador.
He will tell you that he has misplaced Sir Vyvin's sword and that only an Imacando dwarf would be able to make another. He will ask you to go speak to Reldo, who is found in the Varrock Library.
Reldo will tell you that there is an Imacando dwarf that survives and that it likes Redberry pie.
Head southwest of Port Sarim to find the Imacando Dwarf called Thurgo.
Give Thurgo your Redberry pie and then talk to him again. He will tell you that he needs a picture of the sword.
Talk to the Squire in the White Knight's Castle in Falador to find out that Sir Vyvin keeps a picture in his cupboard. Head to the third floor into his room, and search the cupboard.
You have the option to make an additonal Blurite sword for yourself. If you do want one, bring four iron bars.
Bring a pickaxe and two (or four) iron bars and talk to Thurgo. He will tell you that he needs some Blurite ore, and that it can be found in the cave near him.
Go into the cave which is east of Thurgo, and run deep into the cave until you get to the icy bit. Mine some blurite ore (two if you are making an extra sword).
Take the Blurite ore and Iron bars back to Thurgo to make the Blurite Sword.
Note: If you are making an additional sword for yourself, have Thurgo make you a sword, then drop it and talk to Thurgo to get a second sword, and pick up the dropped sword.
Take the Sword back to the Squire to finish the quest.
Note: If you are making an additional sword for yourself, drop the sword and talk to the Squire, and then pick the dropped sword back up again.
Congratulations! Quest Complete!
Guide Made by: DaDa
Corrections submitted by: Deathslayer, Yolk, Marc J, Dark, Panda, Rebecca, Majinvegito3