Moraine Lake glistened before us. It was as far as we had planned to hike that day, a moderate 6.8 mile loop with a 2000 feet elevation gain. Beyond the smooth surface of the lake, Charity beckoned. She is the youngest and tallest of the three volcanic peaks collectively known as the Three Sisters. She sang a song of beauty that had our feet pushing further up the path as if the pied piper himself were playing his song for us.