The Golem

Walkthrough
Note: this walkthrough doesn't cover locations.

The first thing you should do is repair the Broken Clay Golem. If you did not bring your own clay, go northwest and mine four pieces of clay. Use your jugs of water on them to turn them into soft clay. (While there, you can steal the phoenix feather needed for later.) As you use them on the Broken Golem, he will become damaged and later, repaired. He will tell you that he was programmed to destroy a powerful demon, Thammaron. You need to help him slay the demon.

Enter the temple ruins behind the golem, and climb down the stairs. Pick up the  strange implement and a  black mushroom located on the north-west and north-east part of ruins respectively. The black mushrooms are scattered everywhere, but will not show up as a red dot on the map.

Take the letter next to you and read it. Then go to the Digsite southeast of Varrock. Find Elissa and talk to her--she is in the northeast corner of the digsite, wearing green/brown robes. After talking to her, go to the digsite exam centre and search the bookcases. Find Varmen's notes and read them.

Go to the museum of Varrock. Ask the Curator about a missing statuette. Then pickpocket him to get a tiny key. Unlock the display case upstairs to steal the statuette.

Take it back to the ruins of Uzer. Enter the dungeon near the golem. Use the statuette on the empty alcove. Turn all of them towards the double doors to unlock the demon's lair. Go inside to find the demon's skeleton. Use your chisel on the throne to get some gems, then talk to the Clay Golem again. He was not programmed to believe that the demon is dead, so you'll need to reprogram him.

Go back into the dungeon. Go next to the dungeon entrance and use the black mushroom on your pestle and mortar to make black mushroom ink. If you did not already steal a phoenix feather, then go to the clay mine and find the phoenix. Steal a phoenix feather. Use it on your ink to make a phoenix quill pen, then use it on your papyrus to write a Golem program. Go back to the Clay Golem. Use the strange implement on him, then the program to get your reward.

Reward

 * 1 quest point
 * 1000 thieving experience
 * 1000 crafting experience
 * 2 cut rubies, emeralds and sapphires.