Overview
The Drakenborg Redemption is a treasure hunt in Hearts of Stone, set in Bloodrot Pit northeast of Novigrad. Most players find it during Enchanting: Quality Has Its Price, when the search for jade leads into the cave.
What happens
A body just inside the entrance carries a yellowed letter and a bent key. The cave beyond is full of arachnomorphs: small ones in the first chamber and a large one in the second. Once they are dead, the small locked chest next to a shovel sticking out of the ground opens with the key.