Mortimer Keene is full to bursting with madcap plans and if its trouble youre after look no further! With laugh-out-loud illustrations rollicking rhymes and short chapters perfect for new readers this fourth book in the series sees Mortimer Keene involved with DINOSAURS... Mortimer Keene has invented a Time Machine! Soon the school is surrounded by dinosaurs. But what happens when a pterosaur grabs poor Emily Bruce? Written by Tim Healey and illustrated by Chris Mould this is a wickedly funny series. Other titles include: Attack of the Slime Alien Abduction Ghosts on the Loose. If you like Horrid Henry youll love Mortimer Keene! The illustrations are hilarious... one funny story! - Guardian