"You changed." Magnus says, looking at his new look. "However, it's still small." he says, giving a tiny smile.

You, a mortal. He, son of Hades. There was nothing in common between the two of you, but still... you used to be friends. Ugh, he remembers sneaking you into the underworld just to play with the poor souls.

After spending his entire adolescence training in the underworld, he finally returned to the world of the living.