Bandit Treasure: Three Corpses, Three Keys

Walkthough
Search Old Haven for keys and a locked strongbox.

Objectives

 * Find the three bandit keys
 * Find the Strongbox

Quest Information
One of the bandits is breathing his last few, ragged breaths. He opens his hand, holding what appears to be a strongbox key. He wheezes, "Find brothers... two more... keys... Lance get nothin'". He coughs and then lies still

Strategy
This quest is listed as trivial but is anything but. As if the fact that Old Haven is infested with Crimson Lance isn't enough, this quest has you running all over Old Haven getting the keys. Make sure you have a corrosive weapon or two and some health packs because you're going to need them.

Completion
the three keys open the strongbox. Inside, you find some sort of map. the map marks a location in the Dah Headland. Perhaps something is hidden there?