Romserien #6

In "Jern-dvergene," the Robinsons find themselves captured by tiny, incredibly dense aliens known as the iron dwarfs, whose high specific gravity makes them both formidable and strangely fragile. With the help of the planet Lacare’s original inhabitants—caught in a desperate struggle against the iron dwarfs’ invasion—the Robinsons must outwit their captors and reclaim a stolen space station, now hurtling toward a blazing sun. As Tam and Tim lend their courage and quick thinking to the rescue, the Robinsons prepare to continue their journey through the stars.