Overview
This is the fastest method to level up sneak.
Essentials
-Full access to High Horthgar
-Iron dagger(least damage, recommended) or any dagger.
Method
-Go to High Horthgar.
-Find one isolated meditating Greybeard and sneak behind them and backstab them to get x3 bonus for sneak kill.
-Contiune to sneak stab till you reach desired level.
-Stab your way to 100 lvl.
-You monster.
CAUTION
-Do not kill any Greybeards. Wait for them to regenarate health and continue.
-Do not let the Greybeards detect you. Because if they do they will tear you to pieces.
-Use Healing Hands(spell) to work faster.
Tips
-Acitvate the thief stone(one of the guardian stones) to level up 20% faster.