Obsidian Knife

The Obsidian Knife is an item from Ghostscape 2: The Cabin. It is one of the items the Old Man asks you to fetch, and the most difficult one to access as entering the cave that it is in requires all 5 obsidian spheres to solve a puzzle. Obsidian blades like the Obsidian Knife are prized in areas that have access to the material, as obsidian can be made sharper than any metal blade.

Appearance
The Obsidian Knife is a one-edged knife that appears to be several feet long. It is made out of obsidian, a black volcanic glass.