Jack knew it was going to be one of those days when the TARDIS door opened and a black cat trotted out, followed by the Doctor and Martha. "New pet?"
"It's the Master," Martha explained as the Master hissed at her.
"The Master?" Jack looked worried.
'Great, as if having to put up with Martha isn't bad enough, it's the Freak.' The Master added an extra loud hiss in Jack's direction, putting his ears back and exposing sharp fangs.
"He hasn't been that bad," the Doctor pointed out reasonably.
"He's biding his time," Martha stated. "Evil looking creature, isn't he?"