The Master of Callous (audio anthology)

 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
A brand-new four-part adventure featuring the Master’s exploits in the Time War.

1.  Call for the Dead  by James Goss

2.  The Glittering Prize  by James Goss

3.  The Persistence of Dreams  by Guy Adams

4.  Sins of the Father  by Guy Adams

Continuity
to be added