A cozy underground office bustling with activity, filled with vi

A cozy underground office bustling with activity, filled with vintage gadgets, maps pinned on the walls, and small desks cluttered with papers. Mice of various colors (brown, gray, white) wearing tiny glasses and bow ties are working diligently at their desks. A warm glow from old-fashioned lamps illuminates the room, creating a friendly atmosphere. The floor is made of wooden planks, and there are shelves stacked with books and tools.