This volume completes the fascinating deep dive into the fifty-six Sherlock Holmes short stories begun in the acclaimed Hidden Threads in Sherlock Holmes, Volume 1. It illuminates the adventures collected in the Return and reveals intriguing motifs concealed in the underappreciated later stories. Who would have expected to find hidden within the stories social, medical, scientific, literary, artistic, and sporting themes spanning six continents? Each mystery is a puzzle to be unraveled.