Demon assassin armor set for Paladin

[Keradan]

Where i can find this set for paladin class? I have only chest and wrist pieces.
Rogue class obtained this set from attacking ghosts during confrontation with Adyr (after killing Annihilator).
This guide:
http://www.primagames.com/games/lords-fallen/walkthrough/lords-fallen-find-chamber-lies-beat-guardian
says that legs and head obtained in tower before Chamber of Lies (in chest where poison beast and lever), but i did not find these pieces in it. That mean - this way for warrior class.