Have you every had an invisable friend. Well this book is about just that. Meet Jacob, who wakes up to find Mr Ludicus hiding in his bed.Mr Ludicus is invisiable to everyone except Jacob .Oh what fun you think but the truth is it was not all the much fun at first .read about how Jacob tries to explain to his Mom about Mr Ludicus How he goes to school and even his best friend won't believe him and best of all read about the ice cream store adventure. This book is all about Jacob and his invisable friend Mr Ludicus .the adventures are just beginning. .