8 books • 5 series
Book #4: Doctor Who: Classic Doctors New Monsters 4: Broken Memories
Book #1: Doctor Who: The Fourth Doctor Adventures Series 13: Storm of the Sea Devils
Book #1: Extinction
Book #2: Shutdown
Book #3: Silenced
Book #5: UNIT - The New Series: 5. Encounters
Book #7: UNIT - The New Series: 7. Revisitations