Robert C. O'Brien

Robert C. O'Brien was the pen name of Robert Leslie Carroll Conly, an American novelist who also worked as an editor and writer for Newsweek, Pathfinder and National Geographic. He is best known for Mrs. Frisby and the Rats of NIMH, the children's novel that won the Newbery Medal and was later adapted into the animated film The Secret of NIMH. His other books include The Silver Crown and A Report From Group 17, and his last novel, Z for Zachariah, was nearly finished at his death, its final chapters written by his wife and a daughter from his notes.