Is Olivia’s little brother really an alien from space? Find out in this storybook based on a popular episode.After visiting the planetarium, Olivia suspects that her brother, Ian, is actually a space alien, sent to Earth to rid the planet of big sisters! Can Olivia stop her alien brother’s evil plan?OLIVIA™ Ian Falconer Ink Unlimited, Inc. and © 2014 Ian Falconer and Classic Media, LLC
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