National treasure Sheridan Smith returns to the role of Lucie Miller in these four new adventures with the Eighth Doctor! 1. The Dalek Trap by Nicholas Briggs. The thing about black holes is, they're big and they're black and they're deadly, and you'd have to be mad to go anywhere near them. Because anything that falls inside a black hole ends up crushed in the singularity. Unfortunately, the Doctor just went mad, or so it seems, and flew his TARDIS beyond a black hole's event horizon, causing him and his companion Lucie Miller to end up marooned on a planetoid just inside the event horizon....