The Skyscraper Rocket Ship lands on the planet Dendria. Old Mrs Crosier has got herself arrested and Laura has to try to get her out of jail without getting arrested herself. To make matters worse, an old adversary has turned up on Dendria. Meanwhile Johnny is up to something secret. What is he doing and will Laura manage on her own? The Dendrians are green people, who are all looking forward to The Ceremony. Nobody, however, will talk about it. Eveything on Dendria is not what it seems and Laura will have to work out who is a friend and who is an enemy.