Sometimes the gray has the most beautiful lustre. "The Sparrow" is a text-free and multilingual picture book with a Christmas story inspired by the poem "The Sparrow on Christmas Morning" by the Finno-Swedish author Zacharias Topelius. Topelius wrote the poem in memory of his son Rafael that had at the age of one the spring before. Today the poem is more known as a Finnish Christmas carol written by Otto Kotilainen.