Morgenstern has been a fixture in Robin's life for as long as she's been alive.  She considers the towering grey creature a friend and trusts him implicitly.  While Robin has never ridden her father's boon companion alone, some of her fondest memories include being pressed back against Julian's armored chest by the wind of their break-neck pace through the trails and paths of Arden, gales and screams of laughter emerging from her childish lips.  And of toddling safely in, around and amongst the steel grey columns of the mighty horse's legs.

In later years, Robin has made sure that she always has treats for the great greedy gullet whenever they meet and her fondness for 'Mawgee' is evident to all who see them together.

What Morgenstern thinks of all this is, of course, hidden behind his enigmatic mien.