White Whistle

About
White Whistles are second grade artifacts that can only be used by their original owner. They are made from Life Reverberating Stones and given further shape by the user's own modifications to the stone. White Whistles are able to activate dormant relics.

The White Whistle is a signature characteristic for the few divers that are allowed to dive past the fifth layer of The Abyss. Currently there are only a handful of recognized White Whistle users (although it's unknown if some of them are dead or alive).

Life Reverberating Stone
White Whistles are made out of Life Reverberating Stones, these are white stones created by the death of a human. If a person dies and is very loyal and/or loving to another person they can potentially be turned into a Life Reverberating Stone, forming a unique life pattern in the whistle unique to them. Because of this connection, the whistle can only be used by the individual for who the deceased perished for.

It is possible that some form of consciousness is left within the Life Reverberating Stone from when they were still human, but it is unknown if this is always the case.

Life Reverberating Stones have the strength to pull out the true purposes within hidden artifacts, it reacts into another relic, in a similar way to how the tone of White Whistles do.

White Whistle Owners
There are only a few known people who own or have owned White Whistles:
 * "The Lord of Annihilation", Lyza the Annihilator
 * "The Immovable Sovereign", Ozen the Immovable
 * "The Lord of Dawn", Bondrewd the Novel
 * "The Lord of Mystery", Srajo the Obscure
 * "The Lord of Guidance", Wakuna
 * Riko

Currently Riko is in possession of 2 White Whistles, her mother's (Lyza the Annihilator) White Whistle. And her own White Whistle which she obtained at the end of the Lord of Dawn Arc following Prushka's demise and subsequent transformation into a Life Reverberation Stone.