In terms of visual perception, the spread of that ominous leaden gray on the distant horizon isn't particularly fast, and the distance is incredibly far.
Most of the time, often long after seeing the lightning flicker deep in the clouds, the rumbling thunder would finally arrive, slow and delayed.
But this doesn't mean the Vengeance Blade can rest easy.
Because anyone with even a little sailing experience should know, on the open sea, when you can see the clear traces of leaden clouds spreading from a storm so far away with the naked eye, it really signifies something important.
It's like an airplane in Xia Nan's previous life, flying across the sky. When looking up, it seems no bigger than a fingernail and appears to move slower than birds in close range, yet in reality, it's a giant vessel with hundreds of passengers hurtling through clouds at hundreds of kilometers per hour.
