Exalon: *sigh* Noel…he tried his best.
Kael: I thought so.
…
Kael didn't wish to tell Exalon about the memories or let him know that he knew about it.
Without Exalon, he wouldn't have known what had happened after Derylia's death as Derylia would have no memory of the events after her death.
He wouldn't have known that Sakan was the one who started the war. He wouldn't have known how the lions suffered at the claws of the dragons.
What he could learn from Noel's memories will be there waiting for him, and he shall observe everything in detail. But he would listen to Exalon's explanation as a way to fill in the gaps.
…
Exalon: At the time, about a million years after Sakan's war. Noel was born.
One of the painful parts of that was the aftereffects, how long it took the lions to recover and get back on their feet.
The top-level lions had gone into hermit modes, either trying to prevent themselves from dying or to serve as the last foundations of the civilization.