His Last Command: Gaunt's Ghosts: Warhammer 40,000, Book 9 (Unabridged‪)‬

Book 9 in the Gaunt's Ghosts series.

Returning from a long mission, Gaunt finds that his Ghosts are no more. Assigned to a new unit, he must fight to be reunited with his men and save them all from a deadly threat.

Listen because....

It's the end of Gaunt's Ghosts! No, really, the Tanith First has been disbanded, and Gaunt has been sent elsewhere. What will it take to draw them back together? How about a stonking big Chaos attack...?

The story:

The Tanith First are no more. Moved into another regiment under a charismatic new commander, the loyalties of the former Ghosts are put to the test when Colonel-Commissar Gaunt, long believed dead, returns. As the enemy overrun the Imperial forces, clashing with Crusade command, and suspected of harbouring the taint of Chaos, Gaunt must fight not only to be reunited with his Ghosts, but to stop all their lives being thrown away in an unwinnable war.

Written by Dan Abnett. Read by Toby Longworth. Running time approximately ten hours and 19 minutes.