Chapter 226: Clues (4)

"If this is true, why haven’t they told us? I would have been understanding and not been upset that they lied to me. How could they think it is right to tell us we have holy water to protect ourselves only for it to be normal water?" Cassandra asked.

Holy water was their last resort to save themselves if they were in a tricky situation so anyone who went to use that water on a vampire would surely die.