Just Beyond: The Horror at Happy Landings, Paperback - R. L. Stine

Two Martians unexpectedly land on Earth and have to get home - by highjacking the bodies of two kids and leaving a trail of trouble in their wake that no one may be able to fix

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Family camping trips are supposed to be fun, but for Parker, Annie, and the Walden family, they're an absolute nightmare

After a creepy, unidentified bird attacks their mom in the forest, Parker and Annie find themselves face to face with two strange creatures that suddenly enter the kids' brains and take control of their bodies. Can Parker and Annie break loose of this horrific control and convince their family of what's happening, or will the creatures take over their lives for good?