Senhora Pimentinha, an elderly village resident, lives with her husband Garfo Pimentinha. She possesses an unpredictable magical condition causing sudden, involuntary shrinking to pepperpot size, often during moments of responsibility or stress. A distinctive magical teaspoon worn around her neck shrinks with her, transforming into a recognizable burden she must carry on her back during these episodes. She inevitably returns to normal size after an unspecified period.

When small, she gains the ability to understand and communicate with all animals. This allows her to navigate the challenges of her reduced size, forming friendships and alliances with creatures ranging from mice in her home walls to forest animals like Olina the crow and Michael the fox. Her household pets, the dog Fluffy and the cat Cleo, frequently aid her. She routinely enlists animal assistance for transportation, problem-solving, or gathering information.

Her personality combines resilience, resourcefulness, and kindness. Despite the frequent inconvenience and danger of her unpredictable shrinking, she faces each situation with courage and cleverness, often employing guile or negotiation. She demonstrates particular kindness towards children and animals in distress, fostering deep loyalty among her animal companions.

She is deeply concerned with keeping her condition secret from the adult world, fearing embarrassment or disruption. Her initially unaware husband, Garfo, is somewhat blustery and self-centered, dreading social ridicule. He eventually discovers her secret, marking a significant shift in their fundamentally stable and affectionate marriage. Lily, a mysterious young girl living alone in the forest with her pet mink Lou, serves as a key confidante and crucial ally, fully aware of the shrinking and actively helping conceal it.

Her adventures frequently involve helping villagers, children, or animals, sometimes leveraging her small size advantageously. Examples include impersonating a doll to avoid detection, mediating animal disputes, or retrieving small objects. Her interactions, especially with children like Parsley, Chip, Andy, Buck, and Cappa, often involve teaching moments about cooperation, empathy, and perspective.

The condition imposes significant challenges, turning mundane tasks into perilous ordeals if she shrinks mid-task. Minding a baby becomes hazardous when the infant mistakes her for a doll; swimming lessons transform into ocean-like adventures where she is coached by a frog. These situations force her to rely on quick thinking and animal assistance to overcome obstacles scaled for normal size, highlighting themes of adapting to limitations and finding strength in unexpected circumstances.