|"There are plenty of eye-witness accounts. Just because you're so narrow-minded you need to have everything shoved under your nose before you–"
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The Merchieftainess was the ruler of the Black Lake Merpeople colony. She was the merperson with the highest authority in the Great Lake. She was the one who told Albus Dumbledore about what happened in the lake during the second task of the Triwizard Tournament, from which the judges were able to make their decision regarding scores.
- Merchieftainess Murcus