Contains potential SPOILERS!

Lytton: “That Doctor Who a bit boring.”
Parent: “Why did you think it was boring?”
Lytton: “The girl monsters a bit boring.”
Parent: “Doctor Who thinks there might be a reason all the bad things are happening. Like a big monster making them all happen maybe.”
Lytton: “Like a dalek?”
Parent: “Maybe bigger than a dalek.”
Lytton: (eyes very wide): “Like… a SHARK?? Or a dolphin?”
Parent: “Probably not a dolphin, but maybe a shark. In a couple of weeks there will be lizard monsters.”
Lytton: “Maybe it a dalek with LEGS like a lizard!”