In Norton Juster's witty wacky fantasy The Phantom Tollbooth, during their stay in the Dictionopolis dungeon Milo and Tock meet a
witch Which. She used to be in charge of selecting which words to use, hence her title of Which, until she became too miserly with words and got banished to the dungeon where now people fear her as a witch. But while I understand the wordplay and significance in her title, her name still puzzles me: Faintly Macabre, or Aunt Faintly as she kindly allows Milo to call her. Is there any significance in this, or any reason that name might be chosen for a kindly Which?
(Most probably by pure coincidence, I once read another kids' fantasy series featuring a Scottish witch called Macabre. I mention this on the offchance that it isn't coincidence.)