The Good, the Bad and the Alien (novel)

The Good, the Bad and the Alien was one novel of the 2 in 1 Doctor Who books range.

Publisher's Summary
The Doctor treats Rory to a trip to the Wild West, where the TARDIS crew find a ghost town full of sleeping people and the Black Hand Gang; outlaws intent on robbing the local bank. But it's not quite the same as the films Rory's seen on TV. They soon discover they're not the only visitors to Mason City, Nevada and find themselves in a showdown against the alien Cemar!

Continuity

 * The Doctor thinks about wearing a fez. (DW: The Big Bang)
 * Rory asks the Doctor if he had anything to do with the mystery of the missing crew of the Mary Celeste to which the Doctor replies, "Not directly. Long story". Indeed, the Daleks did scare the crew of the Mary Celeste away while chasing the First Doctor through time in DW: The Chase.
 * There is a pub named the Second Chance Saloon, which is a reference to a song written for and featured in another Doctor Who western story, 'The Ballad of the Last Chance Saloon'. (DW: The Gunfighters)