When Brendan and Kierra were attacked by Bellanos, Aidan came to the scene. He knew they were no match for Bellanos and had to reach Fantasus at all cost. Kierra was frozen in fear at the sight of her dreaded father, she wanted to fight, but something kept her rooted in place like all those years ago. Brendan was hurt and bleeding, feeling helpless to protect either one of them. Seeing no other choice, Aidan came forward and shielded them.
"Brendan... Kierra... No matter what happens... I will protect you with my life!"
They were stunned. But Bellanos laughed at the idea.
"Hah! You really think an old monk like you can take on the Prince of the Fomorians!? You truly are a fool who's begging to be killed."
Seeing this made Kierra start chanting. With what courage she had left came forth ribbons of golden mist which circled Aidan. The spell made two great wings sprout from his back, extending his protection for both him and to them.
"I have no courage in me to fight my own father.... But I shall help you, uncle! Protect our family!"
The Secret of Kells (C) Cartoon Saloon & Tomm Moore