The Heart of the Still Ruins

The Heart of the Still Ruins is a side quest in Dragon Age: Inquisition.
 * Lucanus dropped a strange stone while searching The Still Ruins. Its distinct pattern suggests it could be a keystone of some kind. Perhaps there are more.

Acquisition
The quest is acquired by picking up any of the keystones in The Still Ruins (not only the one dropped by Lucanus).

Walkthrough

 * Collect 5 keystones