This guide is complied to help you questing through Tiragarde Sound and its story achievements. Wherever you feel yourself lost or got stuck in the middle of the storyline, this guide might prove useful.
完美无峡 is a part of
库尔提拉斯的博学者 which is a requirement for Battle for Azeroth flying:
争霸艾泽拉斯探路者,第一章.