Daleks. Martha remembered how the Doctor had cursed them, how they'd always lived when he'd lost everything. At the time, Martha'd thought that he'd meant Rose, but she hadn't realized until after Saxon, and seeing him aboard the Barge that he'd literally lost everything because of them. More than simply a girl, or a mate, but his whole family and everything that was a constant in his life.

She wondered if Daleks other than Dalek Caan had ever experienced that sort of feeling.

The dalek almost seemed to blink at her, and Martha took another step forward, keeping her eyes on this thing's eye stalk. Once it had determined that she was above average intelligence and her genes were suited for their project. It was something that had given her nightmares even before she'd know what Davros had been trying to do.

"You. Have. Traveled. With. The. Doctor." It was easy to imagine the horror and the anger in the Doctor's voice, and Martha moved closer to it.

"I have. You're out of your time. You have two choices, Dalek. You can either wait here and do nothing until you're returned, or I'll make it so you never return to your proper timeline." Authority, and giving them a choice, just like the Doctor would do.