A group of authors is getting together to write eleven Doctor Who e-books: one for each Doctor. One of those authors is the great Neil Gaiman, and he's here to talk us through his creation.
The Gaiman e-book is set in the first season of Matt Smith's Doctor - number 11 -- with his companion, Amy Pond. The story takes place on Earth, but not the Earth we live in today.
Gaiman said he wanted to throw an alien invasion at the Doctor that he wasn't used to. Rather than have aliens descend on the Earth and invade while smashing up the place, the aliens would gradually take over the Earth by purchasing it. Awesome!