Last Will and Testament

The Warden will discover a note on the body of Missionary Rigby in the depths of the Korcari Wilds. His last request is that a lockbox hidden elsewhere be taken to Jetta in Redcliffe Village.

Walkthrough

 * As you're looking at the dead men hanged by the fallen tree, go left and after engaging some Darkspawn you should see a fight between a pack of Wolves and a few Darkspawn.
 * You should now see a corpse of Missionary Rigby. As you pick up Codex Entry: Rigby's Last Will and Testament, you will be given the quest.
 * Head as much west as you can, then proceed northward and you should see some ruins. At the base, there is a chest containing Codex Entry: Signs of the Chasind and a Hidden Cache (in the bonfire). Note that the area will be guarded by Darkspawn when first discovered.
 * Now you have two options.
 * Open the lockbox, and get an amulet in your plot items. It is not of any use, and cannot be equipped.
 * You take the lockbox, and give it to Jetta who is located in the Chantry.

Result
If you chose to take the lockbox, bring it to Jetta in the Chantry in Redcliffe. Upon giving the lockbox to her, she assumes the fate of her husband, and kindly thanks you.