Paperback
(Random House Books for Young Readers, Sept. 12, 1987)
A brief examination in text and illustration of reports of UFO sightings with some possible explanations about the origin and purpose of these mysterious objects.
Hardcover
(Random House Books for Young Readers, Oct. 12, 1987)
A brief examination in text and illustration of reports of UFO sightings with some possible explanations about the origin and purpose of these mysterious objects.