As a child Augustus used to tell Ronan and Percy the story of the true phoenix. Till this day , Percy remembered that story distinctly.
As a kid Percy was afraid of fires that were too hot as they burned his skin and because of that he would always use weaker flames. He felt that because his body was not strong enough and that he was just a kid that he could not handle stronger flames but Augustus's story broke that myth for him.
Augustus said ' My child , do you think that the phoenix the progenitor of fire is immune from fire damage? '
It was a perplexing question for the Draco kids who always felt like they had seen the phoenix in pictures to be constantly surrounded by flames , as if it was one with fire itself.
However Augustus just chuckled and showed them the reality of the phoenix's flames as he said ' The flames of the phoenix are so powerful my child that they can burn the bones of the phoenix itself and turn them to ashes!