The Silo is only reachable during the "Ritual of Mania" quest, to find it originally one must follow Wide-Eye out to the Palace Grounds of New Sheoth, she will walk up to the Bust of Sheogorath and activate it.
This will cause it to open, revealing a door, which leads to the Greenmote Silo. It is recommended to use Stealth when entering this area.
Retrieve two Greenmote supplements by standing next to or on top of the pile and activating it 3 times, or as many times as one want.
Greenmote is a psychedelic drug that can only be found in Shivering Isles. The side effects are as follows:
- Drain Strength; 10 points for 60 seconds
- Drain Agility; 10 points for 60 seconds
- Drain Intelligence; 10 points for 60 seconds
- Fortify Speed; 10 points for 60 seconds
- Fortify Endurance; 10 points for 60 seconds
- Fortify Personality; 10 points for 60 seconds
- Night-Eye for 60 seconds