This is the first story in a new series called The Isobel Saga (”trailer” for the new series is here). It’s an interesting concept, involving Isobel going off with the Doctor, Jamie and Zoe in the TARDIS after The Invasion. There’s only one part at the moment, but I’m really liking it so far. Definitely check it out!

The Steel Menace – Chapter 1 – KrozJr – Doctor Who [Archive of Our Own]