Grimwald was once a human. The keyword in that is once. Made young again then Killed and resurrected by a crazy fan of his television show Young Detective Avalanche Iceburg. Grimwald was forcibily brough to the underground city of Infernum after  being turned into a Zombie where through some miscommunication he was made a detective and is now celebrating his first decade on the force. But alls not good in Infernum and new powers, wars and plots are brewing just under the surface of the city.