Gr 5-9 Seven 16 year olds, all born on the same day, are best friends, so, when one after another they disappear, Steve, the remaining one, is determined to find them. He has been discovering that he has unusual powers, including the ability to heal his dying brother after a car accident. The missing six make contact with Steve, but when he meets them, they and his girlfriend reveal that they, like Steve, are aliens from another world. Steve's powers, however, enable him to resist the physical changes in himself and to restore the others to their human form. Other aliens arrive from a space ship to pick up the teenagers, but on finding they have not changed, permit them to remain on Earth. The aliens explain that the experiment which planted aliens in the guise of human babies on Earth was an attempt, now repudiated for its immorality, to find a new home for the aliens. ``Alienated'' teenagers are getting to be a frequent theme in recent YA science fiction. Another example is Wisler's The Antrian Messenger (Lodestar, 1986). Thus far none of these novels has risen above the ordinary. Still the combination of ordinary adolescent experiences and romance with the feeling of being ``different'' is sure to hook readers. Librarians can recommend this to younger teens who don't have the scientific background for more difficult books or to older teens who want a quick, suspenseful story. Carolyn Caywood, Virginia Beach Public Lib .