Girls Together by Amy Ella Blanchard — Read

THEO returned to the library, where she had left Posie-Cossie, and again taking him in her lap, she resigned herself to a long, dreamy evening. Once or twice she sighed, "Poor Jack! Poor Jack! Oh, Posie-Cossie! Poor, dear old Jack!"

And Posie-Cossie would respond by thrusting his nose in her hand, or by giving a little half-whine, as if he understood.