Luna was intrigued by the other sketches that he'd just stuck hers up next to, but she had been out for a very long time already and Daddy would be starting to worry. She resolved to come back and visit Gregory Goyle again soon so that she could look at those sketches and perhaps bring him some things to protect against all of the critters crawling around him warehouse.
"I'd better go now. Daddy will fret, you know?" she smiled one last dreamy smile at him and then slipped out the door of his workshop.
A whimsical, "See you soon", floated back after her.