After 12 weeks of build-up, Who is the Valeyard?, What is happening to the Matrix? What's the deal with those secrets on Ravalox? Our questions are finally answered, in Episode 13 of the Trial of a Time Lord. It turns out the Valeyard is an amalgamation of the Doctor's dark side, ironic that the Valeyard plays barely any part in this episode. The truth that Gallifrey destroyed the Earth to protect the secrets from the Matrix, is very interesting, even if it does go against the entirety of the Doctor Who canon, especially future episode like The End of the World and New Earth, but considering these are 2 of the worst stories in recent Doctor Who history, I don't see how badly this can affect those stories, but it's still a gripping twist. Sabalom Glitz is back after his last appearance in Episodes 1-4 of the Trial of a Time Lord, and he makes for a very amusing presence, Mel probably less so, the Inquisitor makes as much of an impact as ever, just being there to ramble on about court proceedings, and the Valeyard, does nothing in this episode, despite it having just been revealed that his is actually the Doctor. The setting of the Matrix has a very Dickensian feel about it, and the result feels very cheap, almost as if they'd run out of money, there are only two extra supporting cast members here, that being the Keeper of the Matrix, who again does absolutely nothing, and Mr. Popplewick, who has barely a 5-minute screen presence despite there being 2 versions of the same character. The cliffhanger is slow and drawn out, certainly not to the standard of the Deadly Assassin's cliffhangers, but I suppose it can in some way be considered, "creepy".