Du Xiongwu and his family had left Tianxiong city on a small jet plane.
This was a type of short-distance plane. Its flying speed was very fast, and ordinary flying beasts wouldn’t be able to catch up with it. It was the most popular passenger transport nowadays. However, the weakness of this type of small plane was that it couldn’t fly long distances. For example, it required five stops to travel from Tianxiong City to Hero City.
Of course, this kind of short-distance plane did not go straight from Grand Sky City to Hero City. After arriving in another city, one would have to book another ticket.
Now, this plane with the serial number Z-21 had just taken off from Black Rock City.
Black Rock City was nearly three thousand kilometers away from Grand Sky City. It was located in the north of Grand Sky City. After taking off from here and passing through a safe flight route, it would take dozens of minutes to reach the territory of the former Russia.
