The Destructor Opens

The Destructor Opens is the twelfth and final episode of the Crack of Time arc. The episode reveals Cillian's unseen incarnation.

Plot
The Guards drag Cillian to the prison and clamp him into the chair inside. Cillian is aghast that all of these races have managed to form an alliance and asks how that is possible. They explain that it is an alliance against him, as he will cause the end of the universe. They know that the TARDIS will be at the centre of the explosion that ends the universe and (as they wrongly believe) he is the only one who can fly the TARDIS; they will imprison him in the Pandorica to stop the explosion. To lure him to this spot, they built the perfect trap, using Twilight's memories as building blocks. He shouts his innocence, that the threat to the universe is the TARDIS, not him as the alliance doesn't know about River and that he can stop the explosion. The alliance refuses to listen to their hated enemy, and Princess Celestia orders the Pandorica closed over his desperate pleas. Somewhere in time, River improvises a way to open the TARDIS doors by using a controlled explosion. However, upon opening the doors, River finds a stone wall blocking her departure. Apologising to her love, she turns to face the exploding TARDIS console just before it is destroyed.Thousands of echoing explosions erupt across the sky, ripping the universe apart. Earth is left in the middle of a spreading, black void. Silence falls. At the swimming pool, Princess Celestia and Princess Luna finally won but they saw a mysterious shadow who's look at the ocean, Celestia saw her in fear and discovers that they hop back in time to 1993, the Mysterious introduce herself as Cillian Darcy shocking Celestia and Luna, but they didn't see her before, they just saw all eleven faces but then,