The search continued for a while, but the group had to stop since they found nothing of use. The destruction of the area had caused potential foot marks to be unnoticeable.
After a bit of explaining from the elder still carrying him around, Noah finally gained understanding about a bit of the Imp's features.
They advanced like magical beasts, eating materials that featured enough energy. But to reach a state of exaltation; they needed to consume the brains of humans since it had the soul realm embedded in it.
Which was why the imp had probably left the entire town mostly untouched. It needed beings from tier 3 up, since only they had soul realms. For weaker imps, just any brain would do.
Imps were mostly fire creatures, but evolving made them transcend their natural capabilities, allowing them to gain an extra element. Meaning an exalted imp usually had two affinities.