The Ellery Queen Omnibus is a classic mystery and thriller book collection that includes titles such as "The Roman Hat Mystery" and "French Powder Mystery" from 1932. Published by Grosset & Dunlap, this hardcover book is a must-have for collectors and fans of vintage mystery novels. The stories are written in English and offer readers an immersive experience into the world of suspenseful mysteries and thrilling narratives. Perfect for those who enjoy delving into the archives of classic whodunnits, this omnibus edition is a valuable addition to any bookshelf.