The Long And The Short of It
We had two versions of this submitted, and both were good, so we posted both!

The Long Version - By DevilsKin

Requirements: None

Items needed: None

Start: Talk to the Dwarf commander who is west of McGrubor's Woods by the coal trucks. He will tell you that he needs an extra pair of hands to fix up the railings to protect the mines from goblins. He will give you 6 railings.

-Starting from the furthest west railings, search each railing and when it says the railing is broken say you wish to fix it. Sometimes you may fail and cut yourself (I had 3 hits taken off when I cut myself), so be careful. Also watch out for giant bats lurking around. Keep going till you have used up all your railings and go back to the Dwarf Commander.

-The commander will tell you that the goblins have stopped getting in and then will ask you to check up on a guard and tells you that he should be in the black guard watch tower to the south and that he hasn't reported back yet.

-Go south to the black guard watch tower and climb up the ladder. You'll find it's empty...

-Return to the commander and hill will reveal that the guard is called Gilob and he also mentions that Gilob's son was with him. Then he asks you to bring back some clues.

-Go back to the black guard watch tower and pick up the dwarf remains. They re-spawn every 5 minutes so you may have to wait patiently.

-Speak to the commander once more and he will ask you to find the goblin's base were he suspects Gilob's son may be.

-If you look carefully, you will find goblin footprints right by the watch tower. Examine then and you'll find that they are pointing south-east. Follow the footprints that appear now and again until you come to a cavern entrance. This entrance turns out to be just east of the fishing guild.

-Go through the cavern (a fairly simple task) until you reach a room in the cavern filled with crates.

-Search the 7th crate from the left and you will find a dwarf child tied up. His name is Lollk. You untie him and he runs off home.

-Leave the cavern and return to the commander. He thanks you for saving Lollk and asks you of one more favour. To fix up the cannon. He will also give you a tool kit.

-Enter the shed which is just east of the dwarf commander and fix each part by inspecting it. It may take a few tries to fix some parts.

-Talk to the commander again and he will sat that he has yet another favour to ask! He wants to know what to use for ammo. He asks you to go to the Dwarf Cannon Engineer who will be at the Black Guard base just south of Ice Mountain.

-Walk over to the base and talk to the engineer. He will give you instructions and a mould.

-Take the instructions and mould back to the commander and he will thank you.

Well done! Quest complete!

Reward: One Quest Point, crafting exp. And able to buy a cannon from Dwarf Engineer for 750k or separate pieces for 200k each.

The Short Version - by Chaos1313

Start point: Coal trucks, west of McGrubors' Woods
Speak to Dwarf Commander
Mission length: short
No requirements
Members only

Fence bars: Once you talk to the Dwarf Commander (located at the coal trucks, west of McGrubor's woods) take the bars with you and search the fence around the coal mines and keep doing so until you use all the bars up.

Dwarf Remains: Then talk to the commander again and go south to find a watcher tower, go up the ladder, and pick up the dwarf remains that respawn there.

Dwarf kid: after you take the remains back to the commander go south and around the fishing guild and find a cave. Go into the cave and you should see many goblins and rats. Search the crates at the end of the cave and find the lad.

Engineer: Go talk to the commander again and he will tell you to visit the engineer. He is right outside the main entrance to the beginning of the dwarf mines, on Ice Mountain (not white wolf). Talk to him and he will give you a note and a mold, take them and go back to the commander and you are done with the quest.

Reward: Ability to buy a dwarf cannon for 750k (warrant included, if the cannon is ever lost or stolen your able to get a new one free of charge). Ability to make cannon balls (warning! Only 12 xp per cannon ball which is about 3 times less than the 37 xp you get from smithing the same steel bar normally!). And of course, 1 quest point.