What is the most exciting event so far?

The most exciting part of the story so far or at least here I'm at is when Nora goes to a movie night with her friends at Chris’s house and there is blood everywhere and blood symbols on the wall. I haven’t gotten any further but before he was killed Nora gave him the letter she took so that might have something to do with it.  Also before this someone stole all the artifacts except for that letter because Nora had it. Obviously someone really wants that letter and will do anything to get it…