Il tunnel dell'orrore

Clint Callaghan is not crazy. Not entirely, at least. His strings are pulled by an invisible puppeteer who orders him to kill mercilessly and without purpose. Now the army is besieging him and his life is at the end of the line... Only Dylan Dog can help him discover what lies in his past as an orphan. It is a tunnel full of shadows that the Investigator must enter, a tunnel of horrors that leads straight to an old acquaintance of his: Professor Hicks!