No Rest for the Wicked - p. 2 Dragon Age II Guide
Last update: 11 May 2016
Step 5: Checking the warehouse
After winning the battle, you will listen to a short conversation with Isabela #1 and again she has to be in your active team. Start with finding a body of Velasco you have just defeated #2, and you will find the key to the office as well as a valuable dagger The Skotherr.
It is a good idea to look around the warehouse. In its northern-eastern part there is a corridor with traps #1 and you will have to be very clever. If you manage to run to the other side and use the switch, you will be able to open few chest, you will find, among other things 8 sovereigns . In another room in the north you will find a very rare ambrosia #2 (M95, 4).
At the end go to the southern door #1 (M95, 5) and use the key you found by Velasco's body to open it. In a small room look at a chest #2 (M95, 6), inside, among other things, there are charging documents.
Step 6: A meeting with Castillon
Go to the main room of the warehouse (M95, 3), where Castillon will be waiting for you #1. There are two versions of this conversation. If at the end you will choose right upper dialogue option #2, you will agree with Isabela and you will exchange the documents for a ship which used to belong to Castillon. As a result, the quest will end with no bloodshed.
Alternative version means choosing right bottom dialogue option #1, as a result you will disobey Isabela and challenge Castillon. Naturally, he is not going to fight alone as there will be pirates, pirates' archmen and mabari hounds #2.
If you choose the aggressive version, after the battle starts focus on attacking Castillon only #1, because he can encourage his people to fight. After eliminating him, start attacking other enemies #2.
Notice that during the battle, you can use the traps as your advantage, if you put your people (preferably wizards and archmen) on pressure panels and cause flames #1. Of course it is not obligatory, but it will make the victory easier. In the last stage of fights, watch out for the pirate assassin. If you win the battle, a cut-scene will appear, during this scene Isabela will give the documents to Aveline (if Aveline is still the head of city guards) #2.