Task: Question Understanding
Input (English): Context : It is to revel in such writing that I return time and again to Stout's books, and in particular to The League of Frightened Men, Some Buried Caesar, The Silent Speaker, Too Many Women, Murder by the Book, Before Midnight, Plot It Yourself, Too Many Clients, The Doorbell Rang, and Death of a Doxy, which are for me the best of all the full-length Wolfe novels. 
Question : Which series is Death of a Doxy apart of?
Output (English): series