BBC Audio has released The UNIT Collection, a new compilation of five Doctor Who audiobooks, as a download-only ‘box set’.
The adventures are unabridged readings of the Target Books novelisations, and have all been previously released separately.
The UNIT Collection includes Doctor Who and the Auton Invasion, Doctor Who and the Cave Monsters, Doctor Who – Inferno, Doctor Who and the Terror of the Autons and Doctor Who – The Three Doctors.