Only Human (novel)

Summary
Somebody's interfering with time. The Doctor, Rose and Captain Jack arrive on modern-day Earth to find the culprit -- and discover a Neanderthal Man, twenty-eight thousand years after his race became extinct. Only a trip back to the primeval dawn of humanity can solve the mystery.

Who are the mysterious humans from the distant future now living in that distant past? What hideous monsters are trying to escape from behind the Grey Door? Is Rose going to end up married to a caveman?

Caught between three very different types of human being -- past, present and future -- the Doctor, Rose and Captain Jack must learn the truth behind the Osterberg experiment before the monstrous Hy-Bractors escape to change humanity's history forever...

Characters
The Doctor

Rose Tyler

Captain Jack Harkness

Das

Chantal Osterberg

Weronika

Jacob

Lene

Tom

T. P. Quilley

Tina

Reddy

X01

Hy-Bractors

Jackie Tyler

Stephanie

Ka

Sakka

Sakka's Mate

Sakka's Daughter

Neanderthal Midwife

Gual

Nan

Tillun

Anna Marie O'Grady

The Priest

Continuity

 * The TARDIS has a swear filter.
 * Rose gets married to a prehistoric human. Her married name is Rose Glathicgacymcilliach. This would make her a widow as Tillun lives out his natural life in his own time.

Timeline

 * Only Human occurs after: NDA: The Deviant Strain
 * Only Human occurs before: DW: Boom Town