"Cuentos populares de terror." . . "Bien y mal Novela juvenil." . . "Biólogos Novela juvenil." . . "Inteligencia Novela juvenil." . . . . . . "Piedras de carne" . . "Piedras de carne"@es . . . . . . . . . . . . "Fiction" . . "When David Bayle, a young biologist, agrees to collaborate on a project with Doctor Carnap, he finds himself embroiled in a mystery that brings to light the nature of intellegence and its relationship with good and evil." . . . . "Juvenile works" . . . .