High Priest Raymond:
There we go! Now you'll need to use the Light of Dawn teleporter here in the Temple to get to the Sanctum. Once there use your invisibility skills, move fast, and steer clear from the guards.
Oh, and the code! 72.79.78.71. 72.79.78.71. 72.79.78.71. DO NOT forget it!
(See High Priest Raymond again to clear the Sentry Morph after abandoning the quest.)