"Six Swans" by Elenore Abbott in Grimm's Fairy Tales. New York: Charles Scribner's Sons, 1920.
A group of brothers are transformed into birds and it falls to their littlest sister to rescue them. Sometimes she must remain silent for several years. Or she has to go on a long quest to reach the mountain they reside in. No matter what, the familial love and loyalty always breaks the curse.
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