KAL: Za killed the old woman with his knife.

HUR: No.

KAL: Here. Here is the knife he killed her with.

DOCTOR: This knife has no blood on it. I said, this knife has no blood on it.

KAL: It is a bad knife. It does not show the things it does.

DOCTOR: It is a finer knife than yours.

KAL: I, Kal, say it is a bad knife.

DOCTOR: This knife can cut and stab. I have never seen a better knife.

KAL: I will show you one.

(Kal pulls out his flint knife)

DOCTOR: This knife shows what it has done. There is blood on it. (to Za) Who killed the old woman?

ZA: I did not kill her.

DOCTOR: (to Kal) You killed the old woman.

KAL: Yes! She set them free. She set them free. She did this. I, Kal, killed her.

DOCTOR: Is this your strong leader? One who kills your old women? He is a bad leader. He will kill you all.