As I’m gaping at the scene, something attracts my attention. Just along from the Bank of London, directly opposite the church, I glimpse a figure in the throng. Dark helmet-like hair, pale skin, Jackie O-type sunglasses, houndstooth suit …

I peer harder in disbelief. Is that …

That can’t be …

Elinor?

But as I’m trying to focus, she – or whoever it was – disappears into the crowd. I rub my eyes and look again, but all I can see now is a policeman who has appeared out of nowhere and is telling people to get off the road.

Weird. I must have imagined it.

‘Look at the cop,’ says Danny in delight. ‘He’s about to lose it. He’s going to start tasering people in a minute.’

‘Oh my God!’ Suze suddenly points upwards with a gasp.

This is unreal. Now there are people climbing on the roof of the bank. I exchange flabbergasted looks with Suze. It’s like aliens have invaded, or war has broken out, or something. I’ve never seen anything like it, my whole entire life.

FIVE

Well, at least it all makes sense now. At least I can forgive Luke. This is about the first time he’s had a so-called ‘major crisis’ at work and it really is a proper, genuine crisis. No one can talk about anything else. Every news channel is covering it.

I’ve spoken to Luke on the phone and he’s going to make it home when he can. But there was no way he could have left any earlier. He was at the Bank of England seeing all sorts of top people. And now he’s trying to ‘manage the situation’ and ‘limit the damage’. Every single branch of the Bank of London has been besieged. Apparently the Prime Minister himself is going to make a statement and ask everyone to calm down. (Which if you ask me is a big mistake. Mum’s already convinced the whole thing is a government conspiracy.)

‘Tea?’ Dad comes into the snug, where Danny, Suze, Tarquin, Jess, Tom and I are all sitting, still in a bit of a numb daze. The TV is on Sky News and they keep playing the same clip, the one with a stern-faced Luke with all his equally stern-faced banker clients.

‘So.’ Dad puts the tray down. ‘What a to-do! Are you going to rearrange the christening?’

‘We’ll have to, I suppose.’ I nod, and look around the room. ‘When’s everyone free?’

‘The rest of January’s not great.’ Danny takes out his BlackBerry and squints at it. ‘Although January next year is totally clear,’ he adds brightly.

‘We’ve got so many shooting parties …’ Suze fishes for her tiny Smythson diary.

‘And remember our trip to the Lake District,’ Dad chimes in.

God, everyone’s so busy. In the end I get everyone to write down when they’re available in the next few months. Jess draws a grid and crosses off all the days and works it all out.

‘There are three possibles,’ she says at last. ‘The eighteenth of February, the eleventh of March or the seventh of April, which is a Friday.’

‘The seventh of April?’ I look up. ‘That’s Luke’s birthday.’

‘I never knew that,’ says Suze curiously. ‘I’ve never even known Luke to have a birthday.’

‘He’s not really into birthdays,’ I explain. ‘Every time I organize any celebration for him, he cancels it because of some work thing.’

It’s one of the things about Luke I least understand. He doesn’t get over-excited about his presents; he doesn’t drop little hints about what kind of treat he’d like; he doesn’t do a countdown on the wall calendar. One year he’d actually forgotten it was his birthday when I clattered in with a breakfast tray. How can you forget your own birthday?

I glance at the TV screen again. There he is, stepping out of the Bank of England again, his forehead furrowed even more deeply than usual. I feel a rush of fondness for him. He’s had such a shitty year, he deserves a treat. I should throw him a party. Even if he doesn’t want it. Even if he’ll try and cancel it.

And all at once the idea hits me.

‘Hey! What about if I throw Luke a surprise party?’ I look around in excitement. ‘He’ll think we’re just having Minnie’s christening, reorganized … but actually, it’s his birthday party too!’

I have a sudden vision of Luke walking into a darkened room and a whole crowd yelling ‘Happy birthday!’ And Luke’s jaw dropping, and him being absolutely speechless with surprise …

Oh God. I have to do this. I have to.

‘Good one, Bex!’ Suze’s eyes light up.

‘Awesome idea.’ Danny looks up from his texting. ‘What theme?’