10 Doctor Who Plot Holes You Didn't Realise Were Actually Solved
9. Where Did Fifteen Get The Whistle?
At the climax of Empire of Death, all seems lost: Sutekh has won, and life has been all-but eradicated from the universe. But the Doctor always has one last trick up his sleeve, and this time it's... a whistle that can control the TARDIS remotely, that he randomly picked up earlier in the episode with next to no explanation? Eh?
This understandably left fans asking questions. Questions such as: "What is happening?" and... well, mainly just that first one really.
Turns out that Ruby Sunday also asked that exact question in a (slightly bafflingly) deleted scene from Empire of Death. In the scene, it turns out that the Doctor himself creates something of a bootstrap paradox, passing the whistle back to his younger self through the floor of his TARDIS after using it to defeat Sutekh.
It might not be the most satisfying of answers, but when the stakes are so high in a series finale, it's 30 seconds or so that would probably have been worth keeping, to give the Doctor’s victory a little more foundation than a whistle falling out of a ceiling panel.
Especially in an episode that spends five minutes on a lady and a spoon...