Talk:Wonder of the World/@comment-108.1.209.143-20120728135025/@comment-4213306-20120728160929

You never get scrolls by cleaning friends buildings, only blueprints. But you only get blueprints when the stage needs it. For example, if you got all blueprints for the foundation, but haven't build it yet, you don't get blueprints for the next stage.

Also, make sure you clean enough buildings within 24 hours.