This volume presents 5 novellas by Johnston McCulley, creator of Zorro. Originally published under the pseudonym "Harrington Strong" in Detective Story Magazine, these mysteries showcase McCulley's lifelong devotion to the mystery field with meticulously plotted and brightly characterized stories that still hold the interest of modern readers. Presented here are "The Great Green Ring, " "The Only Way, " "Run to Ground, " "The Obvious Clue, " and "Slave of Mystery.