While studying the treasure map, Madame Medusa is suddenly disturbed by loud noise. She pauses for a moment before getting up from her chair to proceed toward the direction the commotion is coming from. (The alligators Nero and Brutus are out of control as they are chasing Bernard and Bianca.)
This terrific story sketch is by Vance Gerry, who boarded a few sequences involving Medusa.
It was Milt Kahl's job to animate this scene. There was no live action footage to help with her walk in perspective toward camera right. A piece of cake for an animator of Milt's stature.
I love the way Medusa pushes herself upward off her chair and transitions immediately into the walk.
Drawing #37 is that transitional drawing, and by itself it looks a bit odd. But in motion everything works absolutely beautifully.
Nothing more enjoyable to watch than Medusa being irritated and angry!