‘Whatever’s inside that cupboard is so terrible, so powerful, that it amplified the fears of an ordinary little boy across all the barriers of time and space, through crimson stars and silent stars and tumbling nebulas like oceans set on fire; through empires of glass and civilizations of pure thought in a whole terrible, wonderful universe of impossibilities. You see these eyes? They are old eyes. And one thing I can tell you … monsters are real.’

Dr Who: ‘Night terrors’ Series 6 (11th Doctor)