Artemis truly didn't care about his sister anymore or what happens to her. Maybe Aeryn must have thought that her brother still cared for her after all the dramas but he didn't, he was a dragon rider now and with a completely new attitude and feelings. If it was the old Artemis, maybe he would have grown softer and rushed to his sister's defense.
But this new one with pale and bright long silver hairs didn't care, the only thing which mattered to him was his silver hairs ─ and how he looked. He sent the merchants to Lyme, Arkala and Penrith to bring forth verities of scented oils which would make his hairs shine brighter. Aurora would laugh every time Artemis complained when there was even a simple stain on his hair, it was the most treasured thing at the moment.
