Doroc's expression darkened as he said, "This is the hatching ground of our Dragon Clan, all the eggs of the clan are here. There are stuck eggs, cold ones, those with insufficient conditions, indeed many have died."
The hatching conditions for the Dragon Clan are exceedingly harsh, Negris knew too well. Not to mention the stuck eggs, even for a healthy egg, successful hatching is no easy task. It requires different measures for different species.
For instance, the Gold Dragon, which is a Magic Dragon, requires a highly active elemental environment to hatch.
Then there's the Black Dragon, a war dragon with extraordinarily tough physical qualities. It must begin training from within the embryo; otherwise, it can't break through its shell, which is several times harder and thicker than that of ordinary Giant Dragons, and it would suffocate to death inside.