On April Fool's Day the Joker leads a revolt of the inmates at Arkham Asylum, Gotham's prison for the criminally insane.  Batman steps in to suppress the revolt.  This graphic novel is recommended for Mature Readers because of its well-known for its psychological intensity and probing portraits of Batman and the Joker.  The graphic novel also influenced scores of artists by introducing  a new school of story telling and technique to comics.  Condition is new,  The product is even in its original shrinkwrap!  Shipped by USPS Media Mail.