The book Out of the Air by Inez Haynes Gillmore is a fascinating work of science fiction prose that tells the unusual story of an invented machine that allows you to travel through time. The main character, a young scientist-physicist Marilyn Hazelton, unexpectedly encounters this incredible opportunity and decides to test it for herself. But time travel hides many dangers and secrets beyond the imagination of even an experienced scientist. The book "Coming out of the air" leaves behind many questions about the nature of time, fate and the limits of human knowledge.