Sometime long before 382 BBY, the Echo Stone was hidden on the world of Angcord to hide it from the Sith Lord Darth Ravi. The people of Angcord used the stone to amplify their force connection and grow more powerful.
Sometime later, Jedi Master Barnabas Vim and his apprentice Vix Fonnick to Angcord in search of force artifacts. The Lady of Angcord, as well as the , drew power from the Echo Stone which corrupted them and the planet itself. Master Vim had sensed the darkness growing on Angcord and warned the Lady of Angcord of the danger surrounding the Echo Stone. The Lady of Angcord, as well as the First Pilgrim, refused to listen to Vim's concerns. Following a dream that revealed the true danger of the Echo Stone, Vim and his apprentice made a move to destroy it.The Echo Stone was effectively shattered, freeing the Lady of Angcord from her dark, raging state. Vim and Fonnick then took the fractured shards of the stone to different parts of the galaxy to create balance on Angcord.
Around 382 BBY, Jedi Knight Azlin Rell searched the Jedi Archives at the Jedi Temple on Coruscant for information about the Echo Stone.
Fonnick shatters the Echo Stone
The Echo Stone had an extremely powerful connection to the living force, being able to influence the well being of an entire planet. The stone had the ability to enhance and amplify connections to the Force. The longer that the Echo Stone was connected to an individual, the greater their abilities became. The stone acted as a conduit of the Force, allowing Angcord to be supported by the light but also poisoned by the darkness. The stone could allow its connections to gain immense amounts of power in the Force, as evidenced by the Lady of Angcord and the . While the Echo Stone could promote life and growth, it could also channel energy from the dark side of the Force into those connected to it.
- Star Wars: Timelines