Courage and Honour: The Chronicles of Uriel Ventris: Warhammer 40,000, Book 5 (Unabridged‪)‬

Book 5 in the Chronicles of Uriel Ventris

Newly returned from the Eye of Terror, Captain Uriel Ventris must redeem himself in the eyes of his battle-brothers, who fear he may have been tainted by Chaos.

Listen to it because....

After two books in the wilderness—both metaphorically and literally—Uriel and Pasanius finally return to battle alongside their brother Ultramarines. But they're being watched, and must be above reproach if they are to remain....

The story:

The Ultramarines are the epitome of a Space Marine Chapter. Warriors without peer, their name is a byword for discipline and honour, and their heroic deeds are legendary. Newly reinstated as Captain of the Ultramarines Fourth Company, Uriel Ventris leads his warriors in battle once again on the world of Pavonis, now a target of invasion by the upstart T'au Empire. 

With the eyes of the Chapter upon him, Uriel must win this war by following completely the wisdom of the Codex Astartes, lest he be exiled once more. But no plan survives contact with the enemy, and the t'au are a dangerous and unpredictable foe....

Written by Graham McNeill. Read by Bruce Mackinnon. Running time is approximately 10 hours 18 minutes.