Horrid Henry and the Mega-Mean Time Machine

“Horrid Henry and the Mega-Mean Time Machine” is a children’s book by Francesca Simon, featuring the mischievous Horrid Henry and his “perfect” younger brother, Perfect Peter. In this installment, Henry builds a time machine (a cardboard box) and tricks Peter into believing it can travel to the future. The story also includes other humorous escapades, such as Henry’s disastrous dining experience at a fancy restaurant and a forced hike.