Every Least Sparrow

A child can simultaneously break your heart and set it free. Such is the case with Jennifer Walker, born with the rare Rubinstein-Taybi syndrome, which severely challenges her mental and physical capabilities, even as it piques her mother's dread of the unknown. Jennifer's is a disorder that most doctors have never encountered, one that informs the story of Every Least Sparrow.

On the night of her birth, the Walkers' pediatrician lays out a new reality that will upend their household. He spe...