For as long as Heidi can remember, her mother has had only 22 words in her vocabulary. And that's fine with the precocious 12 year-old. She and Mama live happily, in the bubble of love and protection provided by their remarkable neighbor, the nurturing but agoraphobic Bernadette. Then one day a new word pops out of Mama's mouth -- the mysterious 'soof' -- and it changes everything. Heidi is propelled on a solo cross-country journey of discovery and loss, truth and identity. Secrets boil to the surface, long-hidden fears are faced, and Heidi finally learns who she is and where she and her childlike Mama came from. SO B. IT is a tale of longing and family lies, of heartbreak and personal courage with just a touch of magical whimsy.