Trollsbane's Demise is a troll den located halfway between Valthume and Cradle Stone Tower. The den is home to two trolls fighting one another over the dead body of a Nord hunter named Frofnir Trollsbane.
- Go to Cradle Stone Tower.
- Walk in the opposite direction from the river (West).
- Fully drop down the cliff side.
- Fight off the two trolls.
- Go to their hollowed out nesting area: Trollsbane's Demise.
- It is called "Cradle Stone Crag" in the official Skyrim game guide published by Prima.