The Shadow Breach is a phenomenon described by Guthix as one of the greatest threats to the universe and existence itself, on par with the Great Revision and the broken Needle.
- ^ Guthix, "Memory bud", RuneScape. "The forbidden secrets of this universe and beyond must be recorded while I still live, so that they can be metered out only when the time is right. The Great Revision. The Broken Needle. The Shadow Breach. If that knowledge is lost, all things shall end. Not just life. Not just the universe. Everything. Time and space, and life and death..."