Thunderfire Wasteland.
Carson Flores and Tobias Singleton flew according to the map, encountering several bands of cultivators along the way, all clearly there in search of divine items in the Thunderfire Wasteland.
Carson Flores was moderately interested in the divine items but not overly so. The sky-reaching radiance from the Tomb of the Demon Emperor had drawn hordes of people, resulting in an endeavor that ended with buckets drawn from an empty well, leaving casualties everywhere; Carson Flores had a deep impression of that.
The divine items that could emit such astonishing radiance were mostly Spiritual Treasures, and if they hadn't generated an Artifact Spirit, it would've been okay, jeing mere lifeless objects of tremendous power. However, once an Artifact Spirit emerged, taming it would not be so easy.