Ok, If u completed assassins creed and u used eagle vision, Then u see blood on the ground, Right? Ok, Ill show what it means. Here is a picture of it:



First, Read the letters from bottom right up, Then u will read this:

“artifacts sent to the skies to control all nations to make us obey a hidden crusade do not help them.”

Weird, Right?

And i know what this text is:



Read the text at the right corner:

“They drained my soul and mate it irsi drain my body to show you where i saw it.”

And do u want to know what this is?:



The date below the bar code is 21/12/2012.That's the date that the world is thought to end.

Scary right? Ive found this info on this site:

http://www.assassinscreedhints.com/mystery-blood-symbols/

Check it out!