2021 - The Eighth Detective (Paperback) → Hardcover ISBN-13: 9781250798473 ISBN-10: 1250798477 Genre: Mystery, Thriller & Suspense ? 2020 - The Eighth Detective (Hardcover) → Paperback ISBN-13: 9781250755933 ISBN-10: 125075593X Genre: Mystery, Thriller & Suspense 7 |