'Genshin Impact' Glimmers Of The Vigilant Yaksha Quest Guide: Yakshas The Guardian Adepti Book Location KEY POINTS Game developer miHoYo recently rolled out update 1.3 on "Genshin Impact" The update introduced the Xiao story quest, and one challenge is to locate a special book The task of finding the special book starts when players visit the Wanwen Bookhouse The recently rolled out update 1.3 of "Genshin Impact" introduces a lot of activities, one of which is the Xiao's story quest. During the Glimmers of the Vigilant quest, players of the game are tasked with obtaining a special book called Yakshas The Guardian Adepti. For players having a hard time locating the book, this guide might come in handy.