Tells about Charlotte and Simon who like none of the same things - Charlotte likes building things and Simon loves knocking them over; Simon runs where Charlotte walks; on the see-saw, one goes up and the other goes down - but despite their differences they still love each other very much!Tells about Charlotte and Simon who like none of the same things - Charlotte likes building things and Simon loves knocking them over; Simon runs where Charlotte walks; on the see-saw, one goes up and the other goes down - but despite their differences they still love each other very much!