Seeking a collection of magical, short stories for children illustrated with grayscale sketches. I believe it was one author. The edition I read in the earlier 2000s was older, maybe 60s or 70s, and had black and white sketches for each story. The stories I remember include one of an acrobat who had never touched the ground since the day they were born, and it ends sadly when their lover is hurt and they fall from the sky?; a magician who had different colored window panes in each room of his house, and to the children who visited each window looked out to a different world, a yellow desert, a green jungle, a blue Atlantis; and two sisters whose parents each separately made deals with the sun and the moon so the babies would live – when the girls were grown they were light and dark, life and death. The light girl was always singing and keeping the parents happy, but the dark girl never sang until the parents were tired of the light girl’s songs – then the dark girl sang her only song, a song of eternal rest. Mostly what I remember from the book was how mystical and melancholic it felt.