Don't blink. Blink and you're dead. Don't turn your back. Don't look away. And… actually, hang on, why didn’t we think of this before? 

The weeping angels – Steve Moffat’s blink-and-you’ll-be-transported-back-in-timey-wimey monsters – might not be as scary as you might think. Yes, take your eye off them and they’ll change from statue to blur, but there’s a simple way of beating them using their greatest weakness: they can’t look at another angel other without freezing. 

And what better way to show you than via a Lego Clara and Peter Capaldi Doctor…