You know this door, this strange portal that you once opened and walked through.

You met dozens of things that most still believe are merely figments of fiction and fancy.

And you met a man, Alejandro Pardo, who spent his lifetime chronicling these things, these creatures.

The door's open now. So walk through it again.

Meet other men and women who've witnessed just how deep the shadows really are.

And of course, meet what lurks furtively in them.