Time appears to stand still as a precious cherub glides across the hours, driven by a butterfly. Is it fantasy or reality? An invitation to travel, or a magical return to the tenderness of childhood? Rediscovered in an ancient volume dedicated to the works of Jaquet-Droz, the sketch of this motif had previously been traced on only one other occasion, dating back to the height of the Age of Enlightenment, by one of the legendary automata created by Pierre Jaquet-Droz.