The twins, Cass and Carl, again enter the mysterious world of the Trumpalar. They visit the past to clear the name of Mary, a convict girl accused of murdering the Governer's godchild. They visit the future and must reclaim the huge morning glory seeds which are playing havoc with time. (LA)Sydney : Ashton Scholastic , 1988
"Tommy is always in trouble, at home and at school. Windsurfing is his only escape from his problems. With the announcement of a windsurfing competition, Tommy is given a chance to prove himself, but to do that - he'll have to ride the danger wave! 10 yrs+"
(Publisher's blurb)Sydney : Ashton Scholastic , 1990