Arthur's First Sleepover (Arthur Adventures Series)

In this book, Arthur is having his friends Brain and Buster sleepover for the first time. The boys are excited to camp out, but also a little worried, especially because there have been rumors about aliens in the area. While they are camping, they hear some strange noises and see a light, which they believe to be aliens! Arthur figures out that it is just his little sister, D.W., playing a prank on them, so the boys decide to play another back on her. D.W. wakes up the whole neighborhood wi...