"What they did to the people here was cruel, too," the Doctor says.

And suddenly, Morgana is off her feet. The Doctor rushes over to her and puts his hand to her pulse. It's beating, if irregularly. he looks back to the door handle and zaps it with his sonic. Low level electric field. A trap after the traps.

And he let Morgana walk right into it.

"Morgana," he says, panicked. "Morgana!"