C651 The World Is Boiling

"It's fine, we are all fine. Moreover, we have been going down from here all the way. As for the one that is very deep, we have been through an underground river." Liu Fengyun used the walkie-talkie to speak. Fortunately their walkie-talkie was of the highest quality, if not, Liu Fengyun would not know how deep he went and would not be able to hear their words