"Pollyanna Grows Up" by Eleanor H. Porter is a children's novel published in 1915. The only official sequel written by Porter herself, it follows Pollyanna as she travels to Boston to bring happiness to the unhappy Mrs. Carew, who mourns her lost nephew. Through her optimism, Pollyanna transforms lives and makes unexpected connections. Eight years later, now twenty, Pollyanna faces new challenges when hard times force her family to take in boarders, leading to surprising reunions and romantic revelations.