Can someone give me a spoiler what will happen to the egg?

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in the novel it hatches and is actually the same white dragon that the main character’s brother had but it reincarnates into that black dragon on the cover! the dragon was saying he was waiting for the brother

Ohh like, hes basically the white dragpn from the late brother, but he changed into a black dragon and told the live brother (lmao) that he has been waiting for him and all? Memories from the past intact?

THATS FRIGGIN AWESOME CANT WAIT I WANNA SEE DAT RED DRAGON THOT DIE