The Science of Magic (short story)

Summary
London has fallen, the Brigadier is dead and the Doctor seems defenceless against Queen Karolina and her army of magical creatures. Can The Doctor, Liz and Benton restore the world, save the Brigadier from the afterlife and defeat a powerful witch?

Characters

 * Third Doctor
 * Liz Shaw
 * John Benton
 * The Brigadier
 * Caroline Brown

Continuity
to be added