Return of the words

Prologue:

The accident

The attic of the TARDIS was very dark and cluttered. But the Doctor wasn't afraid of anything except for the unknown and that was what was in the TARDIS's attic. The Doctor was carrying a crystal ball with a handful of witches trapped inside.

"Doctor?"

He gasped in fear and dropped the ball. It smashed on the ground and emitted a puff of smoke.

"Oh, sorry. I just came to tell you we'd landed." Said Martha.

"Why did we have to land now the witches could be running amok. We've got to find them!"