Professor Dumbledore appears to have been writing for a wizarding audience, so I have occasionally inserted an explanation of a term or fact that might need clarification for Muggle readers.
JKR o5cKs2h58U+GRTGGBPC3ggSFyc1TviAFUF8g6B6DmuFHgKTFvWehJnT1NZZRR4lX
