Lily was hiding something. Albus could tell but couldn't put the pieces together. The older Lily could remember, it was the potions she had been giving James to help him with his divination. She had originally done it just to appease him, thinking as Albus did that they would not work since Divination wasn't a real art or science, but she later found that Divination was real, and her potions were working. They were working far too well.