INTERMEDIATE FICTION
(4) 4-6 Since series-starter Shipwreck Island, the Robinson family has been trapped on a strange island populated by dangerous people, strange hybrid animals, and possibly even aliens. Villains searching for hidden treasure add another layer of danger. To escape, Sarah must finally learn to trust and work with new stepbrothers Marco and Nacho. Sci-fi and adventure mix entertainingly in this more cohesive but still over-the-top fourth book.

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