"Qingniaoxianshu" is a more advanced magic communication method compared to Paper Crane, which Zheng Qing once saw on the Black Prison Battlefield. Unlike Paper Crane, the Qingniaoxianshu cannot turn into an ordinary letter after communication; it transforms into a burst of blue flame.
This is not only an effective method of secrecy but also an instant "receipt" technique—when the Qingniaoxianshu turns into flames, the wizard who released it can easily know from the flames whether the message was heard by the recipient or if something went wrong along the way.
Noticing the envious glances around him, Zheng Qing instead breathed a sigh of relief.
"See, I don't get letters from Su Shijun either." He smiled exaggeratedly and quietly glanced at Jiang Yu standing at the edge of the hunting team.
The witch was seriously organizing the magic potions and the Bo Fu Clan's blood that might be used during tonight's training session, seemingly unaware of the small commotion here.
