Which is harder: seeing your own future - or truly knowing your past? Enjoy this year's Tor.com holiday story “The Ghosts of Christmas,” a new original story by Paul Cornell (Doctor Who, Saucer Country, London Falling).

This short story was acquired for Tor.com by Tor Books editor Patrick Nielsen Hayden.

[Read “The Ghosts of Christmas”]

Take a look at this excerpt from Paul Cornell's London Falling, out next spring from Tor Books:

Detective Inspector James Quill is about to complete the drugs bust of his career. Then his prize suspect Rob Toshack is murdered in custody. Furious, Quill pursues the investigation, co-opting intelligence analyst Lisa Ross and undercover cops Costain and Sefton. But nothing about Toshack’s murder is normal.

Toshack had struck a bargain with a vindictive entity, whose occult powers kept Toshack one step ahead of the law – until his luck ran out. Now, the team must find a ‘suspect’ who can bend space and time and alter memory itself. And they will kill again.

As the group starts to see London’s ancient magic for themselves, they have two choices: panic or use their new abilities. Then they must hunt a terrifying supernatural force the only way they know how: using police methods, equipment and tactics. But they must all learn the rules of this new game – and quickly. More than their lives will depend on it.

[Read more]