Pied Piper

Gmc. Legend a musician who rids Hamelin of its rats by leading them with his piping to the river, where they drown: in revenge for not being paid, he pipes the village children to a mountain, where they disappear
in full Pied Piper of Hamelin
a leader whom people willingly follow, often, specif., one who leads others into danger or trouble by means of elaborate, false promises

See Pied Piper in American Heritage Dictionary 4

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