Little Mag Jessup is an orphan girl who works hard as a servant in Mrs. Perkins' boarding house to earn her keep. She has no education, except what she has picked up on her own. Her future looks unchanging until she is given, on a whim, a devotional book called "Little Pillows," in which she learns that she is valuable to God as His child. She endures trials from many fronts and the prejudice of haughty, rich Margaret, with whom she has more in common than she thinks, on her journey with God.