We have already seen things ascribed to fate/chance/luck. That will continue throughout the story. How does this idea relate to the religious theme in the story?
When we see the zookeeper is interviewed by the newspaper reporter, it is one of several times where Stoker portrays a difference in class between two characters in some very overt ways. What kind of social commentary does Stoker make in this interaction? What other places do you see different classes interacting?
A change comes over Lucy after the tragic night. She seems more solid when asleep and more ethereal when awake. What does this change mean? Why is it described in this way?
At the end of 12 there is no doubt that Van Helsing suspects that Lucy’s death is not the end of the ordeal. Yet he still does not tell anyone else what he suspects. Why? Perhaps more importantly: is he right to do this?