How these papers have been placed in sequence will be made 

clear in the reading of them. All needless matters have been eliminated, 

so that a history almost at variance with the possibilities of latter-day 

belief may stand forth as simple fact. There is throughout no 

statement of past events wherein memory may err, for 

all the records chosen are exactly contemporary, given from the standpoints

 and within the range of knowledge of those who made them.

Me advierte Drácula al abrir su novela. 

La memoria del pasado puede llevar a errar al lector. 

Y al escritor.