The Wee Free Men (Discworld, #30; Tiffany Aching, #1)

by Terry Pratchett

“My name,” she said at last, “is Miss Tick. And I am a witch. It’s a good name for a witch, of course.” “You mean blood-sucking parasite?” said Tiffany, wrinkling her forehead. “I’m sorry?” said Miss Tick, coldly. “Ticks,” said Tiffany. “Sheep get them. But if you use turpentine—” “I meant that it sounds like ‘mystic,’” said Miss Tick.