"Aliens in the Garden" is the ninth story from Even More Tales to Give You Goosebumps.
Kurt is outside by himself when Flip the bully comes at him with his dog. Flip only leaves him alone when it stops raining. The next day, Kurt finds a tiny little spaceship outside and sees three little aliens climb out. Flip comes over, tries to take it from him, and one of the aliens shocks him. He returns with his dog and his friend, but Kurt and his friend Jenna go to great lengths to get the aliens off the ground and save them. He even tosses one in his pocket. They get two, and the other gets the spaceship started. The aliens zap Flip once more before taking off. Later, Kurt realizes that he has a piece of one of their uniforms in his pocket. They get a better look at it and see part of a flag with red and white stripes and little stars, implying that the spaceship was an American ship from Earth.