Object: Decypher the encrypted hymn.

You are an archaeologist.
While excavating a crypt of a church you have found a series of encrypted texts.
You can guess that these texts must be verses of a spiritual hymn, composed by an unknown spiritual master, but what do they actually say?
Your only clue to decypher these messages are two heavy stone disks which each have the alphabet engraved around their rim. One of the disks can be rotated.
Will you be able to solve this tricky puzzle?

For the expert detective:
Only five of the verses were well enough preserved to be shown in this game.
However, it could be clearly seen that the inscriptions on the walls originally contained 10 verses. Can you can find out what the other five verses said?

Variants: there is one variant for each of the five first verses of the hymn.

Please note that there is an alternative piece set.

Related Zillions games: Elcrypt, Elcrypt II.