Props: The Book.

In our movie plot, the book you see below plays an important role. It's presence within the plot allows Sam to summon the demonic spirit from within herself. 

The book itself was created by Luke, one of our group members and was created using tea to stain the pages and the text was printed onto the page alongside the images. 

Here are some other images: 

The symbols shown above show the devil himself - and explains a bit about the Cornovii Tribe and how they made blood sacrifices on their victims. It also tells a bit about the consequences of unleashing the evil spirit which interlinks with the plot.