Another Slice Of H.A.M.

Official quest description: The dwarves are building a new underground rail link between their city of Keldagrim and the cave goblins' Dorgesh-Kaan, but work is being held up by the discovery of ancient goblin artifacts, and they need the help of a qualified archaeologist. Helping them out should be simple enough—unless you stumble upon another H.A.M. plot against the city.
Release date: 24 April 2007
Start: Ur-Tag's house in Northern Dorgesh-Kaan. Must go upstairs to find him.
Difficulty: *****
Length: Medium
Members only: Yes
Requirements:
Death to the Dorgeshuun
The Giant Dwarf
Digsite Quest
15 Attack
25 Prayer
Items needed:
Magic or Ranged gear to fight a level 30 HAM ranger and a level 30 HAM mage (you cannot melee them)
A light source (preferably lantern or mining helmet, otherwise need tinderbox to relight)
Food for low levels.
The other items are obtained during the quest.
Monsters to kill:
Sigmund (level 64)
H.A.M. mage (level 30)
H.A.M. ranger (level 30)
Spoiler warning: Plot and/or ending details follow.
Walkthrough
Excavation

Some Cave Goblins working at the excavation.
Speak to Ur-Tag or Ambassador Alvijar to start the quest. They can be found by going to the northern part of the city, climbing up the stairs, then heading east to the house with a Quest start icon. They will explain they are making a train route between Keldagrim and Dorgesh-Kaan. Go southwest of the city on the same floor until you find a transportation sign on the minimap. Go through the doorway and you will end up in a train station. Walk down the south track and talk to Tegdak, who will give you a trowel and a specimen brush. Dig up the artefacts hidden there by using the trowel on them. Clean all six artifacts by using an artifact on the specimen table—you will then end up with an armour shard, an axe head, a helmet shard, an ancient mace, a shield fragment and a sword fragment. After cleaning those, talk to Tegdak again.
Now take Zanik with you and go to the goblin scribe in the house west of Ambassador Alvijar's house. (Note, the mace will not show up in your inventory) Talk to him about the symbols that are covering the mace that you found. The scribe will not be able to tell you anything about the symbols but he suggests that you go talk to the goblin generals in Goblin Village.
[edit] To the Village
Talk to Oldak, who is down the stairs in the northwest corner of Dorgesh-Kaan. To get there, go west from the Ambassador's house, into the house and then down the ladder in that house. He will teleport you to Goblin Village and will give you a sphere to teleport back to the city. If you mess up or leave the city you can go back to the tracks and get Zanik again.
Once you're in the village, talk to one of the generals and a cut scene will begin. At the end, you discover that Zanik is most likely the goblins' "chosen one" to lead them. The mace is also found to have the power of the Goblin God.

The goblins gather to hear Zanik's speech
[edit] The Hambush
At the end of the cut scene, two H.A.M. members show up and start attacking the goblins with Magic and Ranged. Take the path around the back (west side) of the buildings, but stay out of the attack range. When you get to the tower, climb up the ladder and kill the H.A.M. mage and H.A.M. ranger with either mage or range.
You can simply fight the two foes, or take time by clicking Hide-behind Crate. Hiding will make players unable to be attacked, but unable to attack as well. The mage and ranger will hit at the same time, so using protection prayers can only reduce damage. For this part, it is recommended that you wear dragonhide or other armour with good magic and ranged defence bonuses.
When you have done this, there will be another short cut scene where Zanik is kidnapped by Sigmund. The goblin generals will tell you they are sending two seargents to help you and that you should meet them at the Lumbridge Swamp Caves. They will also give you the ancient goblin mace.
Getting Past the Guards

The Goblins give their thanks.

A basic map showing one way to beat the guards
Sigmund plans to kill Zanik on the train tracks between Keldagrim and Dorgesh-Kaan, making it look like an accident so that war will break out between the dwarves and the goblins. You cannot enter through the Dorgesh-Kaan entrance this time, so you must go to the swamp cave entrance and meet the goblin warriors who will be helping you.
Now go to the Lumbridge swamp and talk to the goblin sergeants, Sergeant Slimetoes and Sergeant Mossfists. They should be near the entrance to the Lumbridge Swamp Caves (make sure you have your light source for this part).
Climb down the entrance to the caves, and next to the rope should be another ladder. Go down it and you will briefly see a H.A.M. guard before he runs away to get reinforcements. Now quickly run down the hallway and talk to the goblins. Tell one to wait behind, and go into the room off to the east side, hiding while the guards run past. Go down by the boxes and get one more guard to come out. Tell the second goblin to wait there, and go back to the room. Then, go past them toward the ladder, but run back when they final guard starts coming, and make sure he sees the goblin and you're home free.
Another method is to hide in the closet while the first two guards pass. Then walk out and hide behind boxes, and while another guard comes walk toward the final guard, and he will head toward the goblins, and you are now safe. During this entire part in the tunnel make sure you aren't seen by any guards that are not attacking a goblin or you will be sent back to the swamp and have to start this section over again. Eventually you will get all the way down the hallway to the ladder at the other end.
An Interesting Thing to Note: When the Goblins deal damage to the guards, you are given Hitpoints experience, so staying in the East Room or Hiding behind a crate can give a player free experience.
Ensure that all of the guards see the goblins, then walk past them and go down the ladder.

A rematch with Sigmund.
Another Sigmund Showdown
At the bottom you find Sigmund. Use ANY method of attack, and he will set his prayer on (according to your choice of attack). Now wield the ancient mace and use Special attack to drain his prayer (requires full power). After that resume the fight. Now he will get hit, but he also seems to have a high defence. Low levels be warned. If you attempt to untie Zanik whilst the fight is in progress, you will be hit for around 10 hitpoints of damage.
The End
When he is defeated, he will teleport away. Untie Zanik, and get ready to watch the final cut scene to finish the quest.