Doctor Who fic: Five Adventures Martha Jones Never Had With the Ninth Doctor (4/5)

Title: Five Adventures Martha Jones Never Had With the Ninth Doctor (4/5)
Rating: PG
Characters: Martha, Nine
Timeline: Season three but no spoilers
Summary: Adventure #4; Martha meets one of the Doctor's old enemies.
Disclaimer: Doctor Who belongs to the BBC.
A/N: Thanks to my beta airelin.

( In a maze of corridors at the heart of an interstellar space station, Martha Jones ran for her life. )