Have you ever dreamed of going back in time or visiting the future? Impossible not to be fascinated by the countless possibilities offered by the prospect of correcting errors, repeating unique experiences, avoid wrong choices or anticipating our advantage events not yet happened. The desire to travel over time is as old as man. Initially the "journey" was entrusted to dreams, hallucinations or meetings with ghosts. Then they made their appearance the first "time machines". And if they still cannot be realized, to make them possible we think Bradbury writers, Dick, Page Mitchell, Wells - who, exploring the multiple possibilities that the topic proposes, feed numerous temporal paradoxes, the most famous of which is: what happens To a person who travels in the past and kills his own ancestor? Among watches that flow down and people who fall asleep awakening in the past, "Chrono-Detectives" who travel to arrest "temporal criminals" and adventurers hunting for T-Rex, eleven stories that, leading to walk over time, speak to us of Something much more obscure and mysterious: the present.