Sunspire Mountains where to find the missing piece of the puzzle

There were many scents to flood between the vale and the mountains.

Merrick led his horde of angered souls forward to destroy those who had wronged him. Xynos was unsure of the original call for blood, but there was no question that he had now entered a war he was obligated to play a part. This was for both his sake and those left to call themselves former Saints.

A cry for battle strung through the air. Nyra had appeared from the peaks within which she fled, directly turning to challenge the heart of Ursus. Lust for death was clear through her voice. It stung like a shriek tearing through his eardrums, forcing moments to pass before the encounter registered. 

This was it. 

Turning his heavy body to confront whom would follow Merrick and display their teeth and claws; ready to impale within his shadowed body.

Every muscle tensed, aching in preparation. 

Would it be only the three, or would more come?