Chapter 1420 – Mysterious Formation
- At a single glance, Chu Feng was able to tell that this invitation letter was from the Cyanwood Mountain. Not only was the special symbol of the Cyanwood Mountain on the invitation letter, it also contained a special sort of aura.
- This sort of aura was unique to the Cyanwood Mountain. It could only be created by a special treasure in the Cyanwood Mountain.
- Thus, it was very difficult for others to forge the Cyanwood Mountain’s special aura. Thus, as long as one received letters containing this sort of aura, it was most definitely from the Cyanwood Mountain because that was the forgery protection method that the Cyanwood Mountain used.