Read the first part of the story.
Blast Off!

Ajay was staring at the Flying Cart Race poster when he heard a voice behind him.
‘So, Ajay, are you entering the race, too?’
Ajay turned around to see his classmate Betsy. ‘I sure am,’ he replied.
‘That’s great,’ said Betsy. ‘I mean, I guess you have a chance to win something. I think everyone who enters gets a free pencil.’
Ajay frowned. Betsy had won first prize in every race since 2050. But this year, Ajay had big plans. ‘I’ve just finished building the fastest flying cart I’ve ever made,’ he bragged.
He didn’t mention that it was also the first flying cart he’d ever built.
‘Good luck,’ Betsy said. ‘I built mine, too, and it’s even faster than the one I built last year!’
‘Actually, I’m still adding a few things to mine,’ Ajay said. ‘It’s going to be really powerful.’
‘Well, at least you know you’ll get a free pencil!’ Betsy said.