Jeff Davis talking/giving clues to what Lydia is. (x) “He said, her scream echo’s.” which is usually known as a sonic scream mostly used by banshee’s. Banshee is a fairy like woman who begins to wail if someone is about to die. Her mourning call is heard, usually at night when someone is about to die and usually around woods. They appear as a stunningly beautiful woman of any age that suits her. Banshees are also usually seen by a person who is about to die/dead in a violent way such as murder.