Horrid Henry and the mega-mean time machine / Horrid Henry and the mega-mean time machine Horrid Henry and the Mega-Mean Time Machine Horrid Henry and the zombie vampire / Horrid Henry and the abominable snowman / Horrid Henry and the mummy's curse / Horrid Henry and the secret club / Horrid Henry and the zombie vampire Horrid henry and the demon dinner lady Horrid Henry and the football fiend /