Equal Rites (Discworld, #3; Witches, #1)

by Terry Pratchett

“Do you think I used magic?” Esk looked down at the queen bee. She looked up at the witch. “No,” she said, “I think you just know a lot about bees.” Granny grinned. “Exactly correct. That’s one form of magic, of course.” “What, just knowing things?”