A Blades History, Book I, II, III, and IV can be found throughout RST in the various locations listed below:
A Blades History, Book I:
Sancre Tor Barracks, Last Rider's Lodge, Sancre Tor and the Oracle's Dwelling.
A Blades History, Book II:
Sancre Tor Barracks, Sancre Tor and the Oracle's Dwelling.
A Blades History, Book III:
A Blades History, Book IV:
Contents of A Blades History, Book I
Contents of A Blades History, Book II
Contents of A Blades History, Book III
Contents of A Blades History, Book IV