In my game there will be clues to find the missing scrolls and you are going to be told a clue by a messenger, at the start of the game there will be a messenger and they will tell you where there first scroll is and when you get to that scroll there will be a messenger there waiting to tell you where the next scroll is and so on. The game will end once you have found all the scrolls. The scrolls will be hidden around the map strategically an could prove to be a challenge to find them.
This will be one of the 6 scrolls which you need to find to win the game.
This will be on the messengers that will tell you the clue to the next scroll.
Once you have collected all the scrolls the game will end and will take you to a end game screen and will ask you to either quit game or restart. It will also congratulate you for completing the game.
These are some end game screens i like:
I like this end game screen because it is easy to navigate around and allows you to play again and or go back to the menu.
I like this end game screen because it congratulates you so you think you did something good and this will allow the user to think that they completed the game properly.