It took Valerie until midnight, but after she finished, she managed to realise that this was some strange book that contained somen hybrid of spells and prayers.
After some time, she managed to translate one of the spells -
wrapped stone spell.
The instructions included a paper, blood and stone. She had to write initial of woman's name on the unused paper with her own blood, then wrap a rock with that paper. Then she would have to place it on Black book or manuscript used for mass and speak the prayer loudly... Next, she would need to burry the wrapped stone under a doorway the woman - the target of the spell - will pass through.
The effect of the spell would make woman 'dance naked'.