
Upon killing the rockworm, a cave entrance will appear. You are looking for a rare rockworm on the map. You do not need to "pass" the event in order to gain credit for the bounty. A unique Flayer will spawn that drops the Gidbinn when you defeat it. For this quest all you need to do is head over to the Gidbinn altar in the Flayer Jungle and inspect it. This can be found in the center of the map. The Blade of the Old Religion quest begins when you enter the Flayer Jungle or shortly after completing Act 3 Quest 1: The Golden Bird. Look for a small narrow passage leading into a smaller area. This cave is typically found on an outlying portion of the map either in the southern section of the lower half of the map, or in the south east section of the map. You do not need to "pass" the event to clear this bounty. You do not need to "pass" the event to complete the bounty. Look for the Rare monster first, then worry about the kill count afterwards. Each Adventure mode will provide the player with 5 random bounties for them to complete in order to obtain a Nephalem Cache.

Below is a list of bounties that players can get in Act II during an Adventure Mode game in Diablo III.
