This book will appeal mainly to boys who are reluctant readers.  Ricky is celebrating his birthday and going to the natural science museum.  Meanwhile the evil General Jackrabbit has taken the heads from the dinosaur skeletons and combined it with his own fur to create a new creature that is a cross between a dinosaur and a rabbit.  He then zaps them with a ray gun and makes them evil and orders them to destroy the city.  They go on a rampage and Ricky and his Mighty Robot save the day.  The story is simple and most of it is told through the illustrations.  This is a pricey comic book.