A chilling simulation has revealed how nine people died in one of the biggest mysteries known to man. It all transpired in 1959 ... A Soviet investigation at the time owed it to an 'unknown ...

Find out all the unresolved and unanswered mysteries in the history of One Piece anime and manga in our complete list here.

But the biggest shock came ... Fictional detectives and time travelers have always shared a certain kind of kinship. After all, both live to solve mysteries that seem beyond human comprehension.