Lesa Cline-Ransome knew she wanted to be a writer by the time she reached middle school. She thought she wanted to be a journalist but later realized she was too shy to conduct interviews. Cline-Ransome became interested in children’s books when she married her husband, James Ransome, an illustrator. It was also James who encouraged her to write books for young people. Cline-Ransome’s new book with her husband is “Light in the Darkness” (Disney Hyperion Books), a story of slaves and their determination to learn how to read and write.