Zamorak page 1

Zamorak page 1 is a possible reward from Treasure Trails. It can be found in all level clues. The pages are used to fill a "Damaged book" received from the Horror from the Deep quest. Once you have all four pages of that God's book, you can preach from it, as well as bless symbols (50 Prayer required).

Trivia
This is current the most costly God page of all 6 books. Why exactly this, as opposed to any of the other Zamorak pages, is the most expensive remains unknown.