Amal: the practical sister who digs up the "diamond key" that unlocks the mystery of Pakicetus, a whale-dog creature who once swam the ancient seas that are now Pakistan. Mehwish: the blind younger sister, who moves with the sun and music inside her and thinks in "cup lits not fully legal." Zahoor: their heretical grandfather, a scientist who loves variation and "vim zee" and his two granddaughters most of all. Noman: the young man who steps into...