The cat vanished, leaving behind the hairball. Morgan stared at it for a further moment, unsure if she was being totally ridiculous...then with a sigh, reached in her pocket for something to use - finding a scrap of cloth that would have made do as a bandage in a dire situation, she picked up the hairball with it and wrapped it within the cloth.
Perhaps it was just gross and meaningless. But the spirits could sometimes give blessings in disguise...very good disguise. Making sure it was well wrapped, she put the hairball in a pocket on her bag before walking away.