A New Challenger

Steps

 * 1) Blow the Horn of Challenge while on the natural rock bridge.
 * 2) Defeat the Krulkiel Champion.
 * 3) Return to Trozusk.

Rewards

 * At least
 * One of the following:
 * Sword of the Challenger
 * Trozusk's Axe of the Victor
 * Warhammer of Triumph