This is a slambang space happy fantasy and it's fun although it won't appeal to the Sci-Fi sophisticate. Dauntless young Captain Pausert is just about to settle down to a reasonable life as a commercial trader but then he meets the wackiest witches in the galaxy. There's Maleen, a Jr. Miss witch who is multi-skilled, her tiny little brother Leewit who specializes in teleporting, and her gamin little sister Goth who has an ear/earth shattering variety of whistles. They also possess a new space drive that makes his ship, the Venture, a sought after prize and Captain Pausert finds himself in the middle of a multitude of world wars. But he also discovers that he too has unsuspected talents which he puts to good use in dealing with such factions as the ""Worm World,"" a menace controlled by a monstrous robot brain and a ""self- inflated cosmic clown"" known as a ""Vatch."" And then he's hard put to keep up with the kids, particularly Goth who has marked him as her future mate. Mr. Schmitz has imagination and a good comic sense which keeps the action fluid.