Fool's Gold

Fool's Gold is a secondary quest in Act 2 of Dragon Age II. Yevhen, a dwarf and member in good standing of the Dwarven Merchants' Guild, blames you for inspiring his three sons Merin, Iwan and Emrys to go off looking for treasure in the Deep Roads. He demands that you go looking for them and hopefully bring them back alive.

Acquisition
Talk to Yevhen in the north-east area of Hightown during Act 2. if she is in the party when you accept the job.

Walkthrough
Note that you may want to bring a Rogue with 30 Cunning on this quest because there is one Chest - Complex at the end.

Go to The Deep Roads location on the Free Marches map. You arrive in a Deep Roads tunnel. Proceed east around the corner and kill several Hurlocks. Go north and then east again. Grab the contents of the Rubble just before a doorway. Go through the door and keep going straight until you see Emrys and have a conversation after which he leaves.

Investigate the pit just south and you will be ambushed by a number of spiders. This is not a hard fight but not trivial either as it includes four or more Poisonous, two Corrupted, and some Giant spiders, so just watch your Rogues' and Mages' health. Duck into the small alcove to the east of the pit to find a lootable Pile of Bones.

Go back north out of the pit and go into the north-leading doorway to the left (west) of where Emrys was cowering. Continue north and prepare to fight some more Hurlocks led by a Darkspawn Emissaries. Kill the Emissaries ASAP because they use spells that can spike your health down fast. After this fight you will automatically talk to Merin who then leaves.

Make your way back south and around east past Emrys' former spot and then north into a wide tunnel with shining blue root-like things. Loot the Pile of Bones on the right hand side. Turn the corner east to find Iwan's remains and loot the Golem Control Rod from them. To the north of his corpse is another Pile of Bones.

Continue east up the stairs and notice the Golem to the south which you can interact with. It's not required to but it's recommended, since if you do this you will use the Control Rod and then it becomes your ally. Proceed north through the Golem-lined hall. After you kill them all proceed west and fight Hurlocks and another Emissary. An Ogre may join the fight if you go too far west so it's best to stay easterly until all foes have been killed, then go west until the Ogre spawns and kill it. Check in the south-east area of this room for a Pile of Bones. Go north into the room containing the treasure caches, a new side quest object and a locked (Complex) chest, loot up and then head back south and west to the exit room. Loot the Pile of Bones then leave and return to Yevhen in Hightown.

Result
Merin and Emrys made it out alive. Yevhen mourns the loss of Iwan but is grateful and gives you a reward.

Rewards
1000 XP and 2 Gold