Ellery Queen books in order
18 books in the catalogue, about 116 hours of reading in all; the shortest takes 4 hours and the longest 12 hours.
1 series and 10 standalone books in the catalogue.
Ellery Queen
23 books
The Roman Hat Mystery 4.4 h The French Powder Mystery length not known
The Dutch Shoe Mystery 5.6 h 
The Egyptian Cross Mystery 5.7 h 
The Greek Coffin Mystery 6.8 h The American Gun Mystery length not known
The Chinese Orange Mystery 5.5 h The Lamp of God length not known
Halfway House 5.0 h The Door Between length not known
The Devil to Pay 4.9 h 
The Four of Hearts 5.5 h The Dragon's Teeth length not known
Calamity Town length not known
There Was an Old Woman length not known
The Murderer is a Fox length not known
Ten Days' Wonder length not known
Cat of Many Tails length not known
Double, Double length not known
The Origin of Evil 4.3 h The King Is Dead length not known
The Scarlet Letters length not known
The Finishing Stroke length not known
Standalone books
The Tragedy of X 6.4 h 
Calamity Town 5.2 h 
The Detective Story 8.1 h 
The Twelve Crimes of Christmas 4.7 h Great Short Tales of Mystery and Terror 11.7 h 
Purr-Fect Crime 5.1 h 
Murder for Halloween 6.6 h 
Detective Stories 4.1 h 
The 50 Greatest Mysteries of All Time 10.4 h 
The Oxford Book of Detective Stories 10.8 h