swift's "shadow on the highway" (2014, ) is the first of "the highway trilogy" of young adult novels, and is based on the life of highwaywoman katherine fanshawe, also known as lady katherine ferrers. the second in the trilogy, "spirit of the highway" (2015, ) is told in the voice of the ghost of a roundhead farmer's son who loved katherine. "lady of the highway" (2016, ) completes the trilogy.