Rokell is an outlaw Gark from the planet Ornam, disguised in a cloud and waiting to attack with his powerful force. Barney is the Earth boy he wants to capture. Tibbo is the boy from the UFO, a peaceful Gark trying to return to Earth in time to save his friend, Barney. Their exciting adventure will take you out of this world!
Used availability for Margaret Goff Clark's The Boy from the UFO Returns
October 1981 : USA Hardback
June 1983 : USA Paperback