Windtorn Ruins is an area in Niwen. It is the safe house for the Heart of the Forest. Its entrance is found in the northeastern part of Windswept Wastes. On the map, it is east of Windswept Wastes.
Overview
Not only is Windtorn Ruins where the Gorlek kept the Heart of the Forest safe, but it is also home to five depictions of the history of Niwen's Decay and how hope will return to Niwen as a Guardian Spirit to reunite the Will of the Wisps and restore the Light, one of which is broken.
Escape Sequence
Warning! Spoilers ahead!
With the wisps reunited, Seir, the Spirit Willow's light, is whole once more. Seir is talking to Ori when they are suddenly interrupted by the Sandworm. The oversized worm, who is supposedly angry over Ori and Seir's presence, begins to chase the duo through the ruins. At the end of the escape, Ori passes through a small gap. The Sandworm does the same, but instead gets stuck and crushed by falling rocks.