Does not work, here is a picture of the entrance to the hidden street. You simply cannot enter the hidden street. Quest name and item needed located in quest helper.
After obtaining the egg in secret ways, the entrance to the next part of the quest does not work either (the part where you put the egg in a nest and it hatches and you fight the phoenix and then are able to summon it) Also, off topic, random floating mob on the same map
The quest asks you to go into the map as shown by the second post in this thread. In this map you are suppose to drop the egg somewhere and spawns the Phoenix. When we were in Henesys and you spawned a bunch, I killed one and it counted for the completion of the quest.
