- "This dark stone is covered in dust, as if it has been sitting here for years - it looks like a piece of one of the statues that was chipped away. A tracery of strange runes and markings cover the stone's surface. It feels strangely familiar somehow."
Sounding Stone is a miscellaneous item in Planescape: Torment.
The Sounding Stone is a message left in the Trial of Impulse by the Practical Incarnation. After it has been listened to, it can have a further use on the Fortress Roof by distracting the Transcendent One long enough for the Nameless One to revive all his companions.
Can be found in the Trial of Impulse (X=1175 Y=940).