Descendant like Ancestor

In the girl's Dormitorium, Julie and Melanie sat with the spellbook on the bed. Julie had been staring at it since she had returned to her dorm. Julie said, 

"I keep going through the pages, just as Evans asked me to, but I don't know what is missing."

Melanie pursed her lips as she was of no help with witch things. She asked Julie, "What about those potions that your mother left you? Were you able to figure out what they are used for?" 

Julie shook her head. She had left them untouched, and the only person who knew how to feel and tell about the potions was the one who was now dead. "I wish I knew. Mother didn't leave any clue to it, I wonder if she knew I would try reviving Cillian. If she believed I would be successful which is why she never wrote anything about it in the letter," she said, realizing her mother had a lot of faith in her.