Welcome to the Sequel!

Sequel to 'The Heart Within'. If it's not one thing, then it's another for Katy. Not only has she discovered that she is a member of the Time Lord race, but the Doctor has gone and done a face-changing trick. But it wouldn't be an adventure with the Doctor if something like this didn't happen, now would it?

Ten/OC pairing. Some Rose bashing. Canon, but with tweaking to include OC.