After sacrificing his life to save Peri in the Caves of Androzani, the Doctor regenerated into his most flamboyant, arrogant and frightening incarnation yet. Save Earth from Halley’s Comet, do battle with the alien mastermind Sil, twice, and face not just the Master – but the Rani too! Return to past adventures, battle terrible foes old and new and face the ultimate trial – the trial of a Time Lord. It’s time for a change my dear, and not a moment too soon. The Sixth Doctor Sourcebook is a full colour 160 page hardcover by Alasdair Stuart.