The hand that covers the sky!

Frank Fang compared them and found that it was true!
Although there are only some simple lines on the treasure map, the outline of the entire map is exactly the same as the outline of the area deep in the Far North on the map in Canglan's hand!
In other words, this treasure map is the treasure map deep in the Far North!
"They really are related..."Frank Fang slapped his forehead, looking incredulous.
He just had a flash of inspiration and suddenly remembered the treasure map...