Previous chapter: 
                                    
                                        Chapter 722 build momentum
                                
                                                                                        
                                    Next chapter: 
                                    
                                        Chapter 724 not worth living
                                
                                                    PREVIEW
... used this semaphore to achieve long-distance communication. Tricolor flag language used to be a compulsory subject for the corpse hunter assessment, but now it is an elective course in the super power academy. It has little practical significance, so Yang Dong has only done a rough study of the tricolor flag, but did not think about it. Had a chance to use it.
After a while, the tricolor flag was also waved on another building a few hundred meters away. Yang Dong raised the monocular to ...
YOU MAY ALSO LIKE
 
                                






















![The Royal Military Academy's Impostor Owns a Dungeon [BL]](http://static.novelbuddy.com/images/the-royal-military-academys-impostor-owns-a-dungeon-bl.png)



