Rosemary Sutcliff books in order
23 books in the catalogue, about 84 hours of reading in all; the shortest takes 2 hours and the longest 9 hours.
2 series and 14 standalone books in the catalogue.
Eagle of the Ninth
8 books
The Eagle of the Ninth 4.7 h 
The Silver Branch 4.2 h 
Frontier Wolf 3.7 h 
The Lantern Bearers 4.6 h 
Sword at Sunset 8.8 h Dawn Wind length not known
Sword Song length not known
The Shield Ring 4.1 h The Arthurian Trilogy
3 books
Standalone books
Outcast 4.2 h 
Warrior Scarlet 3.8 h 
Knight's Fee 4.8 h 
Beowulf 1.8 h 
The Mark of the Horse Lord 4.6 h 
Black Ships Before Troy 2.4 h 
The Witch's Brat 2.4 h 
Tristan and Iseult 2.6 h 
Heather, Oak, and Olive 2.2 h 
The Capricorn Bracelet 2.9 h 
Sun Horse, Moon Horse 2.0 h 
The Shining Company 4.9 h 
The Wanderings of Odysseus 2.2 h 
The Kingfisher Book of Great Boy Stories 2.9 h