Right-hand Path

Right-hand Path is a document in Azrael's Tear.

Transcript
Thief, Once you have the Grail go to the Cathedral and take the north door. Pass through the next chamber, and when you reach the tunnel beyond take the right hand path. I shall meet you on the aquedut beyond and guide you out of the Temple. Trust no one else. I am the only one who truly wishes to be rid of the Grail.