Ring of Invisibility

This ring grants the Invisible intrinsic. Most monsters will be unable to see you coming, and can at best tell where you were the last time you attacked them. (You, of course, always know where you are.) Warnings: A few monsters can See Invisible, while others can occasionally hear you. Of course, a monster which is Blind will be unaffected. Note too, that some monsters can wear rings! As an unfortunate side effect, this ring will increase your appetite.