The black cat jumps down from the fences and walks away. It looks like a stray who goes around looking for food. Although it seems like it has a mind of its own and went inside a house. It's suddenly changed into a human form. She managed to do that because she's an advanced type of witch. It allows her to change into an animal form which in her case, a black cat. She felt that there's a spell being casted from the castle. She needs to check it out.
"There's a witch in that castle." she muttered to herself.
Lily walks straight to her witch's altar where her cauldron and other stuff are located. There are different things around that room dedicated to witchcraft. She's been trying to locate witches who didn't know they were one. In this case, that woman from the castle seems to be a witch. She's trying to cast spells two in a row without knowing that it left a trail of magic. The magic attracted her, that's why she went to that castle.
