Be sure that you have: In inventory, look inside the hat of Ratchett and see the Rev. 13:18.
Look at Greta's bible. Check the documents in the scrapbook. See the last sentence of the bible passage - '...and his number is Six hundred threescore and six - 666'.
The combination is 666.
So place it on the 6th line from zero.
Counterclockwise, clockwise and counterclockwise again.
Check the picture below to see where the 6 lies. It is the one under the arrow.
