Kapitel 1464: Tradition.

So she made these three bundles of joy because she had to make offspring. It was a must for her to do so before she could leave the realm into the void and become a divine dragon.

She came begrudgingly to their ancestral grounds for that sole purpose. She didn't expect that she would grow attached to her little ones after they hatched. Her affection for her dragonlings made her feel a little anxious for the last egg that hadn't hatched yet.

She looked toward it now. The lone blue egg with white sparkles on its surface stood in her egg nest. It didn't hatch along with the others. 

She thought to herself, "Maybe I made a mistake. But it is not too late yet."

She laid four eggs, but only three hatched. She might have made a mistake during the incubation period, which caused the delay. Such a mistake is possible despite her instincts and ancient memories. No one, including dragons, is perfect.