In a cabin on an island somewhere in the Gulf of Finland, a little girl awakes under a full moon to find herself alone in bed. Perhaps it is the moonlight that illuminates and sweeps across the island to wake her, like the sea covered by ice at its shores. She remembers that she is sleeping in a bed by herself on the island because her mother is dead. She climbs out of bed and looks out of the window. It is April, and the floor is very cold under her feet.