To move without being seen is a difficult skill to master
Upon reaching 80 skill in hiding, you will unlock the ability to train stealth. Stealth is often used by thieves to get close to their mark without being seen. Hiding and stealth can also be found on some assassin templates, wishing to ambush their prey.
Usage
In order to stealth, you will need to hide first, and then use the stealth skill. A well trained thief with GM hiding and GM stealth will find that on UO: Invictus any attempt to hide, will automatically engage stealth.
Training
To train stealth use hiding and then stealth in order. This skill is easily trained by macro with the use of a delay to compensate for the skill usage timer.