The Master of Callous was a full cast audio anthology released in December 2018 by Big Finish Productions. It was the second release in The War Master audio series and featured Derek Jacobi as the Master.
Publisher's summary Edit
On the mining colony Callous, Elliot King struggles to meet the demands of its governor, Teremon. The odds are stacked against him, and his options are running low. The world that once promised dreams now offers only despair.
He is the Master and the Ood will obey him... but to what end?
2. The Glittering Prize by James Goss
4. Sins of the Father by Guy Adams
|2.1||Call for the Dead||James Goss||Scott Handcock||Ood||5 December 2018||BFPDWWMAR02|
|2.2||The Glittering Prize|
|2.3||The Persistence of Dreams||Guy Adams|
|2.4||Sins of the Father|
to be added