The All Seeing Eye
The Othrin's Eye
A stone that looks like the eye of a living animal caged in white gold wire.
When someone kills the owner of this item or in other ways manipulate the eye itself they gain control of it and can see threw it at all times. However if another person or spirit or creature puts or has it put to its eye the Othrin’s stone will magically replace the eye it is put to and the owner will see threw the eye like that person sees threw its own eye. (if the person is a changeling the owner sees the world like a changeling, a spirit like a spirit)
See The Othrin under Wiki