"The Doctor: I'm not just a "professional." I'm the Doctor. Alex: What's that supposed to mean? The Doctor: It means I've come a long way to get here, Alex, a very long way. George sent a message — a distress call, if you like — Whatever is 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. Alex: Hey? The Doctor: Through crimson stars and silent stars and tumbling nebulas like oceans set on fire; empires of glass and civilizations of pure thought — and a whole terrible, wonderful universe of impossibilities. You see these eyes? They're old eyes — and one thing I can tell you, Alex: monsters are real. Alex: You're not from Social Services, are you?"