Far above Earth, a war-like, galactic race of Zyrons invade the Sky Islands.

It needs Earth's four witches, Lord Oron the ancient Weatherman and the developing magic of the tiny apprentice witch, Jade, to overcome the invaders, with a bit of help from Jimmy Crikey and XRU. the talkative portable computer and starship navigator. Their combined forces and the warriors of the Sky Islands succeed in repelling the Zyrons, but in the process, the Weatherman disappears.

The four Earthbound witches unite to search for him throughout the Solar System in Jimmy's starship.

Their search takes them to the hidden caverns of Mars, where stick-like beings called Ropians live below the barren planet's surface.

The Ropians become an interplanetary threat when their need for water threatens Earth. They have entrapped the Weatherman to help bring them rain.

The supernatural forces of the four witches, the wisdom of the Weatherman, the knowledge of Jimmy and XRU combine to challenge the threat the Ropians pose.

Only success in their challenge will assure freedom for the Weatherman.

Also avalable as ebook and audio versions