Eva Padlyat lived in an Inuit village on Ungava Vat in northern Canada. In winter, when people wanted mussels to eat, they searched along the bottom of the seabed. Eva had often walked on the bottom, helping her mother, but today - for the very first time - she was to go down below the thick sea ice herself. Her mother went with her to the shore and out onto the ice. The time was just right. The outgoing tide had pulled the seawater away, leaving...