"...I will always protect you, sister. You'll never be alone, but you have to learn to let go..." - Mark's last words upon departing Mark Eon, notibly the Hero of Altamore, is the older brother of Martha Eon. Being the older brother, Mark is more protective of Martha than anyone else he ever met. This is because they both grew up with each other in Altamore. Anthony Eon, his father, safely put them in the hands of Bianca's Grandfather because Grace Silverwing was very abusive towards the kids.