The green grass came surging towards us. There were more people there now, hundreds of them, all around the edges of the Common, and there were cops trying to keep them back. They all had their phones out, taking pictures of us. A TV camera crew was just arriving, piling out of their vans and setting up equipment.

‘I’ve always wanted to be on the telly!’ I said.

Evan grinned and was just saying ‘Me too!’ when we landed. It made us stagger a bit, and we both lurched towards the watching crowds. They screamed and starting to stampede backwards, falling over and treading on each other. It was crazy.

Oh great, I thought. I said, ‘I wish no one gets hurt, and I wish no one was scared of us.’

The crowd calmed down then. They regrouped and pressed nearer to us, craning their necks up and going ‘Wow!’, ‘Ooh!’, ‘Aah!’ etc, etc, like people do when they’re watching really amazing fireworks or something.

‘What shall we do now?’ I said.

‘Go for a walk?’ Evan suggested.

‘Yeah, why not?’

So we walked off the Common and into the town. It was weird ’cause each step bounced us up in the air and then we came drifting down again. It was like walking on the moon.

The crowd followed us, and more people joined them as we bounced along through the streets. They were running out of their houses, pouring down the streets towards us from every direction.

It was funny seeing the town from this height. Houses came just past our knees, and even blocks of flats were only around head height. And I could see all the different roads and streets and the way they were laid out – for the first time I really got the shape and pattern of the town I’d lived in all my life. It was a bit like when I went on holiday to the Isle of Wight when I was eight, and we went to this place, Godshill, where they had a model village you could walk around. But this was a model village with real tiny people in it, running after us, or waving at us from top-floor windows.

Well, you might think you’d never get bored of being a giant and walking around being followed by cheering crowds and filmed by TV crews (a couple of helicopters had turned up and they had cameras going too). But the truth is, once we’d walked round town a couple of times the novelty started to wear off. I mean, it was still great, but I started to think, What next?

‘What next?’ Evan said.

‘I dunno. Do you want to go even bigger?’

‘I dunno.’

I heard a tiny voice squeaking ‘Sam! Sam!’ and I looked down and there was Maeve with three of her friends in the High Street.

I bent down. ‘Hiya Maeve.’