X.F.Moix 
Heralds of Mystery. The Substitute. 

Heralds of Mystery was born with the purpose of transmitting the chronicles of those hapless witnesses who have lived all kinds of mournful and impossible events. In this series of stories, there will be no room for orthodox reasoning or hasty speculation. None of the events narrated by the witnesses will be logical enough to hope to find satisfactory solutions. Get ready to enter a world where diffuse reality will test your sanity. Will you go unpunished or will you become another herald, a fatal protagonist of the impossible?